{"title":"Metering Blocks \u0026 Parts - Holley Tuning Parts","description":"","products":[{"product_id":"holley-26-36-power-valve-plug-gasket","title":"Holley 26-36 Power Valve Plug \u0026 Gasket","description":"\u003cdiv class=\"full_description\"\u003eHolley Power Valve Plug \u0026amp; Gasket\u003c\/div\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eFits Holley Model 2300™, Model 4150™, Model 4160™, Model 4500™\u003c\/li\u003e\n\u003cli\u003eOne Plug and Gasket\u003c\/li\u003e\n\u003cli\u003e1\/2-28 Thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"attributes-table\" cellspacing=\"0\" style=\"width: 100.088%; height: 352.688px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eHolley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eAir and Fuel Delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eColor\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eRaw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eEmission Code\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eGasket Or Seal Included\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eGrade Type\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; text-align: left; height: 19.5938px;\"\u003eLength\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003e0.735 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003ePart Type\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eCarburetor Power Valve Block-Off Plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003ePower Valve Plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eShape\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eSub Category\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eHardware, Fasteners and Fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eThread Diameter\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003e1\/2-28 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eThread Type\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eFine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eUniversal Or Specific Fit\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003eLimited 90 Day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003eUPC\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003e090127154335\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth class=\"label\" style=\"width: 52.9678%; height: 19.5938px; text-align: left;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd class=\"data\" style=\"width: 47.0322%; height: 19.5938px;\"\u003e26-36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":42064873554017,"sku":"HOL-26-36","price":12.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/26-36-Power-Valve-Plug-_-Gasket-img1.jpg?v=1742449412"},{"product_id":"adjustable-metering-plate-kit-for-holley-4160-supersedes-qft-34-3","title":"Adjustable Metering Plate Kit for Holley 4160 Supersedes QFT 34-3","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade to Jet Tuning\u003c\/strong\u003e – Converts Holley 4160 carburettors with fixed metering plates to accept standard replaceable Holley main jets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Compatibility\u003c\/strong\u003e – Works with Holley, QFT (Quick Fuel), and Brawler carburettors featuring side-hung fuel bowls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit\u003c\/strong\u003e – Includes adjustable metering plate, notched float for clearance, gasket, and Phillips-head screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Adjustable Metering Plate Kit is a direct replacement for QFT part #34-3 and is designed to convert 4160-series carburettors with fixed secondary metering plates into tuneable units that accept standard \u003ca title=\"Holley Main Jets\" href=\"https:\/\/carbparts.com.au\/collections\/jets-air-bleeds-boosters-holley-tuning-parts\"\u003eHolley main jets\u003c\/a\u003e. Ideal for performance tuning or modern rebuilds, it allows precise fuel mixture adjustments without replacing the entire baseplate or fuel bowl setup.\u003c\/p\u003e\n\u003cp\u003eThe kit includes a specially moulded notched float for clearance of the jets, a new metering plate gasket, and Phillips-head screws to replace older-style clutch head fasteners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMain jets are not included and must be purchased separately.\u003c\/li\u003e\n\u003cli\u003eRequires externally adjustable needle and seats.\u003c\/li\u003e\n\u003cli\u003eIf your carburettor has a power valve cavity on the secondary side (common in early 1850 models), you will need the “Cavity” Kit which includes a plate to replace the original steel block-off plate that covers the cavity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible with Holley 4160-series and other aftermarket models using side-hung fuel bowls.\u003c\/p\u003e","brand":"Gator","offers":[{"title":"Standard Kit (No Cavity)","offer_id":42302757601377,"sku":"RK343-1","price":105.0,"currency_code":"AUD","in_stock":true},{"title":"Cavity Kit (Early 1850)","offer_id":42302757634145,"sku":"RK343-2","price":100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/RK343-1-Adjustable-Metering-Plate-Kit-NO-Cavity.png?v=1752122002"},{"product_id":"holley-main-jet-repair-kit-14-32","title":"Holley Main Jet Thread Repair Kit 14-32","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete thread repair kit for Holley Main Jets (14-32 thread size)\u003c\/li\u003e\n\u003cli\u003eIncludes STI tap, 15 inserts, magnetic tang break tool, and drill bit\u003c\/li\u003e\n\u003cli\u003ePerfect for restoring damaged or stripped carburettor threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Holley Main Jet Repair Kit is a specialised thread restoration kit designed to repair damaged 14-32 threads in Holley carburettor Metering Blocks. With premium tools and materials included, this kit is ideal for high-performance carb rebuilds, race prep, or workshop use.\u003c\/p\u003e\n\u003cp\u003eThe kit contains 15 stainless steel 1.5D inserts, a high speed steel STI tap, a combo tap and insert installation tool, a magnetic tang break tool, and the correct drill bit for precise hole sizing.\u003c\/p\u003e\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e15 x 1.5D stainless steel inserts\u003c\/li\u003e\n\u003cli\u003eMagnetic tang break tool\u003c\/li\u003e\n\u003cli\u003eCombo tap and insert installation tool\u003c\/li\u003e\n\u003cli\u003eHigh speed steel intermediate STI tap\u003c\/li\u003e\n\u003cli\u003eDrill bit (matched to thread size)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gator","offers":[{"title":"Default Title","offer_id":42577954635873,"sku":"HCK-14-32","price":75.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/hck-14-32-holley-main-jet-repair-kit-img1.png?v=1762645045"},{"product_id":"holley-single-stage-power-valve","title":"Holley Single-Stage Power Valve Sizes 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5","description":"\u003cul\u003e\n\u003cli\u003eSingle-stage power valve for Holley performance carburettors\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple vacuum ratings from 2.5 to 10.5\u003c\/li\u003e\n\u003cli\u003eRestores correct power enrichment under load and wide-open throttle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHolley single-stage power valves are a critical component of the power enrichment circuit in Holley performance carburettors. They operate using engine vacuum to control when additional fuel is supplied to the main system. Under light throttle and cruise conditions, the valve remains closed. As engine load increases and vacuum drops, the valve opens to deliver extra fuel, preventing lean conditions, hesitation and bogging while ensuring smooth and responsive power delivery.\u003c\/p\u003e\n\u003cp\u003eThese single-stage power valves are available in a wide range of vacuum ratings, allowing precise tuning to suit your engine combination and driving style. Each valve includes a gasket and is designed to provide reliable operation across street, strip and performance applications.\u003c\/p\u003e\n\u003ch3\u003ePower Valve Selection Guide\u003c\/h3\u003e\n\u003cp\u003eOne of the simplest ways to select the correct power valve is to measure manifold vacuum at idle with the transmission in gear for automatic vehicles. The recommended power valve rating is approximately half of this vacuum reading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e If your engine produces 20 inches of manifold vacuum at idle, the appropriate power valve would be a 10.5.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduct: Holley Single-Stage Power Valve\u003c\/li\u003e\n\u003cli\u003eDesign: Single-stage\u003c\/li\u003e\n\u003cli\u003eVacuum Ratings Available: 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5\u003c\/li\u003e\n\u003cli\u003eFunction: Power enrichment under load and full throttle\u003c\/li\u003e\n\u003cli\u003eCompatibility: Holley performance carburettors using single-stage power valves\u003c\/li\u003e\n\u003cli\u003eGasket: Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInclusions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Holley single-stage power valve (selected vacuum rating)\u003c\/li\u003e\n\u003cli\u003ePower valve gasket\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Holley","offers":[{"title":"2.5","offer_id":42705405116513,"sku":"HOL-125-25","price":28.0,"currency_code":"AUD","in_stock":true},{"title":"3.5","offer_id":42705405149281,"sku":"HOL-125-35","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"4.5","offer_id":42705405182049,"sku":"HOL-125-45","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"5.5","offer_id":42705405214817,"sku":"HOL-125-55","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"6.5","offer_id":42705405247585,"sku":"HOL-125-65","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"7.5","offer_id":42705405280353,"sku":"HOL-125-75","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"8.5","offer_id":42705405313121,"sku":"HOL-125-85","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"9.5","offer_id":42705405345889,"sku":"HOL-125-95","price":26.5,"currency_code":"AUD","in_stock":true},{"title":"10.5","offer_id":42705405378657,"sku":"HOL-125-105","price":26.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/HOL-125-power-valve-img4_d9fbbb15-88e7-4edd-bf77-27ffbc994a39.jpg?v=1766480803"},{"product_id":"holley-320-350-500-carburettors-carby-bowl-gaskets-qty-10-pack-black","title":"Holley 350 390 465 600 650 750 850  Carburettors Carby Bowl Gaskets Qty 10 Pack Black","description":"\u003cul\u003e\n\u003cli\u003eReplacement bowl gaskets help stop seepage around the fuel bowl and metering block joints.\u003c\/li\u003e\n\u003cli\u003eA multi-pack is ideal for jet changes and servicing where bowls are removed regularly.\u003c\/li\u003e\n\u003cli\u003eFresh gaskets support stable float level control by preventing external leaks and air entry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFuel bowl gaskets are a normal consumable on Holley-style carburettors because any time you remove a bowl for jets, power valves or float adjustment the gasket can tear or compress. Starting with a fresh gasket helps prevent weeping, keeps fuel off hot manifolds, and makes tuning far less frustrating. Use the listed carb series and bowl style to confirm you are ordering the correct set for your application.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Carb Parts\u003c\/li\u003e\n\u003cli\u003eColour: Black\u003c\/li\u003e\n\u003cli\u003ePack size: 10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748809314401,"sku":"H34\/10","price":65.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/H34-10-Holley-320-350-500-carburettors-carby-bowl-gaskets-10-pack-Black.png?v=1763897150"},{"product_id":"holley-390-465-600-650-750-850-carburettors-carby-bowl-gaskets-squarebore-qty-10-blue","title":"Holley 350 390 465 600 650 750 850 Carburettors Carby Bowl Gaskets Squarebore Qty 10 BLUE","description":"\u003cul\u003e\n\u003cli\u003eReplacement bowl gaskets help stop seepage around the fuel bowl and metering block joints.\u003c\/li\u003e\n\u003cli\u003eA multi-pack is ideal for jet changes and servicing where bowls are removed regularly.\u003c\/li\u003e\n\u003cli\u003eFresh gaskets support stable float level control by preventing external leaks and air entry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFuel bowl gaskets are a normal consumable on Holley-style carburettors because any time you remove a bowl for jets, power valves or float adjustment the gasket can tear or compress. Starting with a fresh gasket helps prevent weeping, keeps fuel off hot manifolds, and makes tuning far less frustrating. Use the listed carb series and bowl style to confirm you are ordering the correct set for your application.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Carb Parts\u003c\/li\u003e\n\u003cli\u003eColour: Blue\u003c\/li\u003e\n\u003cli\u003ePack size: 10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748809347169,"sku":"H34B\/10","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/H34B-10-Holley-320-350-500-carburettors-carby-bowl-gaskets-10-pack-Blue.png?v=1763876747"},{"product_id":"holley-390-465-600-650-750-850-carby-metering-block-gaskets-squarebore-black-10-pack","title":"Holley 350 390 465 600 650 750 850 Carby Metering Block Gaskets Squarebore Black 10 Pack","description":"\u003cul\u003e\n  \u003cli\u003eFresh metering block gaskets help prevent fuel and vacuum leaks during Holley carb servicing.\u003c\/li\u003e\n  \u003cli\u003eA quality gasket improves sealing around passages so tuning changes behave as expected.\u003c\/li\u003e\n  \u003cli\u003eIdeal to keep on hand for restorations and regular maintenance of Holley style carburettors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMetering block gaskets seal critical fuel and vacuum passages between the metering block and the main body, so a tired gasket can cause issues like seepage, unstable idle and inconsistent mixture. Replacing them during a rebuild or jet change is cheap insurance and helps keep the carburettor reliable. Match the gasket style to your Holley series and metering block type to ensure passages line up correctly.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Carb Parts\u003c\/li\u003e\n\u003cli\u003e  Black\u003c\/li\u003e\n  \u003cli\u003ePack size: 10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748809379937,"sku":"H35\/10","price":65.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/H35-10-Holley-320-350-500-carburettors-carby-metering-block-gaskets-10-pack-black.png?v=1763876744"},{"product_id":"holley-320-350-500-carburettors-carby-metering-block-gaskets-qty-10-pack","title":"Holley 320 350 500 390 465 600 650 750 850   Carburettors Carby Metering Block Gaskets Qty 10 Pack","description":"\u003cul\u003e\n\u003cli\u003eFresh metering block gaskets help prevent fuel and vacuum leaks during Holley carb servicing.\u003c\/li\u003e\n\u003cli\u003eA quality gasket improves sealing around passages so tuning changes behave as expected.\u003c\/li\u003e\n\u003cli\u003eIdeal to keep on hand for restorations and regular maintenance of Holley style carburettors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMetering block gaskets seal critical fuel and vacuum passages between the metering block and the main body, so a tired gasket can cause issues like seepage, unstable idle and inconsistent mixture. Replacing them during a rebuild or jet change is cheap insurance and helps keep the carburettor reliable. Match the gasket style to your Holley series and metering block type to ensure passages line up correctly.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Carb Parts\u003c\/li\u003e\n\u003cli\u003eBlue\u003c\/li\u003e\n\u003cli\u003ePack size: 10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748809412705,"sku":"H35B\/10","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/H35B-10-Holley-320-350-500-carburettors-carby-metering-block-gaskets-10-pack-blue.png?v=1763876747"},{"product_id":"holley-carb-bowl-gasket-kit-holley-320-350-390-465-500-600-750-vacuum-secondary-carburettors","title":"Holley Carb Bowl Gasket kit Holley 320, 350, 390, 465, 500, 600, 750 Vacuum Secondary Carburettors","description":"\u003cul\u003e\n\u003cli\u003eReplacement bowl gaskets help stop seepage around the fuel bowl and metering block joints.\u003c\/li\u003e\n\u003cli\u003eA multi-pack is ideal for jet changes and servicing where bowls are removed regularly.\u003c\/li\u003e\n\u003cli\u003eFresh gaskets support stable float level control by preventing external leaks and air entry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFuel bowl gaskets are a normal consumable on Holley-style carburettors because any time you remove a bowl for jets, power valves or float adjustment the gasket can tear or compress. Starting with a fresh gasket helps prevent weeping, keeps fuel off hot manifolds, and makes tuning far less frustrating. Use the listed carb series and bowl style to confirm you are ordering the correct set for your application.\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMetering block Gasket x1\u003c\/li\u003e\n\u003cli\u003eBowl Gasket x1\u003c\/li\u003e\n\u003cli\u003eBowl washer seals x4\u003c\/li\u003e\n\u003cli\u003eAll reuseable gaskets and washers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Kit Suits 2 \u0026amp; 4 Barrel front metering block \u0026amp; bowl\u003c\/p\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748809969761,"sku":"KH34-2","price":25.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/KH34-2_IMG_1959_clipped_rev_1.png?v=1765364591"},{"product_id":"holley-carb-bowl-gasket-kit-holley-600-650-750-street-hp-avenger-carburettors","title":"Holley Carb Bowl Gasket kit Holley 600 650 750 Street HP Avenger Carburettors","description":"\u003cp\u003e\u003cstrong\u003eHolley Carb Bowl and Metering Block Gasket Kit - Suits 4 Barrel Squarebore Carbs\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReusable bowl and metering block gaskets for quick servicing and reliable sealing\u003c\/li\u003e\n  \u003cli\u003eIncludes washer seals to stop seepage around bowl screws\u003c\/li\u003e\n  \u003cli\u003eSuits many Holley and Quick Fuel squarebore 4 barrel carburettors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis brand new Holley carburettor gasket kit includes the core sealing components required when removing fuel bowls and metering blocks for jet changes, servicing, or rebuild work. The reusable gaskets and washer seals help prevent fuel leaks and save time during repeat maintenance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2 x Metering block gaskets\u003c\/li\u003e\n  \u003cli\u003e2 x Fuel bowl gaskets\u003c\/li\u003e\n  \u003cli\u003e8 x Bowl washer seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHolley 4 barrel squarebore carburettors including 465, 600, 650, 750\u003c\/li\u003e\n  \u003cli\u003eStreet HP and Street Avenger series\u003c\/li\u003e\n  \u003cli\u003eSquarebore double pumper carburettors\u003c\/li\u003e\n  \u003cli\u003eQuick Fuel carburettors (squarebore models)\u003c\/li\u003e\n  \u003cli\u003eCommon Holley list numbers: 1848, 1850, 4452, 3310\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Does not fit spreadbore model carburettors.\u003c\/p\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748810002529,"sku":"KH34-4","price":44.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/KH34-4_IMG_1955_clipped_rev_1_34929004-ab58-4044-9d82-f643c019da0f.png?v=1765364597"},{"product_id":"holley-carb-bowl-gasket-kit-holley-390-465-600-750-vacuum-secondary-carburettors","title":"Holley Carb Bowl Gasket kit Holley 390 465 600 750 Vacuum Secondary Carburettors","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete front and rear gasket set\u003c\/strong\u003e for Holley vacuum secondary carburettors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable gaskets and seals\u003c\/strong\u003e ideal for servicing, jet changes and tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits popular Holley 4 barrel models\u003c\/strong\u003e including 390, 465, 600 and 750 CFM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Holley carburettor bowl and metering block gasket kit is designed specifically for vacuum secondary 4 barrel carburettors with front and rear metering blocks and bowls. It includes all the critical reusable gaskets and seals required when removing bowls or metering blocks for maintenance, tuning, or upgrades.\u003c\/p\u003e\n\u003cp\u003eReusable materials help prevent fuel leaks while allowing repeated disassembly without gasket damage, making this kit ideal for street and performance applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Front metering block gasket\u003c\/li\u003e\n\u003cli\u003e1 x Front fuel bowl gasket\u003c\/li\u003e\n\u003cli\u003e1 x Rear fuel bowl gasket\u003c\/li\u003e\n\u003cli\u003e1 x Rear metering block gasket\u003c\/li\u003e\n\u003cli\u003e8 x Bowl washer seals\u003c\/li\u003e\n\u003cli\u003e2 x Transfer tube O-rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHolley 4 barrel vacuum secondary carburettors\u003c\/li\u003e\n\u003cli\u003e390 CFM, 465 CFM, 600 CFM, 750 CFM\u003c\/li\u003e\n\u003cli\u003eCommon Holley list numbers: 8009, 1848, 1850, 3310, 80457, 4452\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Vacuum secondary squarebore carburettors with front and rear metering blocks and bowls.\u003c\/p\u003e","brand":"Carb Parts","offers":[{"title":"Default Title","offer_id":42748810035297,"sku":"KH34-5","price":45.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/KH34-5_IMG_1952_clipped_rev_1.png?v=1765364611"},{"product_id":"holley-carb-bowl-gasket-kit-holley-650-spreadbore-4165-4175","title":"Holley Carb Bowl Gasket Kit Holley 650 Vacuum Secondary Spreadbore 4165 \/ 4175","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete bowl and metering block gasket kit\u003c\/strong\u003e for Holley 650 CFM spreadbore carburettors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable gaskets and seals\u003c\/strong\u003e ideal for servicing, jet changes, and tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for vacuum secondary Holley models\u003c\/strong\u003e \u003cstrong\u003e4165\/4175\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Holley carburettor bowl and metering block gasket kit is specifically designed for 650 CFM Holley spreadbore vacuum secondary carburettors, including models 4165 and 4175. It includes all the critical reusable gaskets and seals required when removing fuel bowls or metering blocks for maintenance, tuning, or performance upgrades.\u003c\/p\u003e\n\u003cp\u003eThe reusable gasket materials help prevent fuel leaks while allowing repeated disassembly without damage, making this kit ideal for both street and performance applications where regular tuning is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x front metering block gasket\u003c\/li\u003e\n\u003cli\u003e1 x front fuel bowl gasket\u003c\/li\u003e\n\u003cli\u003e1 x rear fuel bowl gasket\u003c\/li\u003e\n\u003cli\u003e1 x rear metering block gasket\u003c\/li\u003e\n\u003cli\u003e8 x bowl washer seals\u003c\/li\u003e\n\u003cli\u003e2 x transfer tube O-rings\u003c\/li\u003e\n\u003cli\u003e2 x pump transfer tube O-rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHolley 4 barrel vacuum secondary carburettors\u003c\/li\u003e\n\u003cli\u003e650 CFM spreadbore models\u003c\/li\u003e\n\u003cli\u003eHolley 4165 and 4175\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This kit is designed for vacuum secondary spreadbore carburettors only. It does not suit squarebore or mechanical secondary models.\u003c\/p\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":42955962744929,"sku":"KH34-7","price":39.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/KH34-7_spreadbore_vac_secondary.png?v=1765364612"},{"product_id":"holley-carb-bowl-gasket-kit-holley-650-800-double-pumper-spreadbore-4165-4175","title":"Holley Carb Bowl Gasket Kit Holley 650 800 Double Pumper Spreadbore 4165 \/ 4175","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete bowl and metering block gasket kit\u003c\/strong\u003e for Holley 650, 800 CFM spreadbore carburettors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable gaskets and seals\u003c\/strong\u003e ideal for servicing, jet changes, and tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for Double Pumper Holley models\u003c\/strong\u003e with front and rear bowls and metering blocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Holley carburettor bowl and metering block gasket kit is specifically designed for 650 \u0026amp; 800 CFM Holley spreadbore double pumper carburettors, including models 4165 and 4175. It includes all the critical reusable gaskets and seals required when removing fuel bowls or metering blocks for maintenance, tuning, or performance upgrades.\u003c\/p\u003e\n\u003cp\u003eThe reusable gasket materials help prevent fuel leaks while allowing repeated disassembly without damage, making this kit ideal for both street and performance applications where regular tuning is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x front \u0026amp; rear metering block gaskets\u003c\/li\u003e\n\u003cli\u003e2 x front \u0026amp; rear fuel bowl gaskets\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e8 x bowl washer seals\u003c\/li\u003e\n\u003cli\u003e2 x transfer tube O-rings\u003c\/li\u003e\n\u003cli\u003e4 x pump transfer tube O-rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHolley 4 barrel double pumper carburettors\u003c\/li\u003e\n\u003cli\u003e650 \/ 800 CFM spreadbore models\u003c\/li\u003e\n\u003cli\u003eHolley 4165 and 4175\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This kit is designed for mechanical secondary spreadbore carburettors only. It does not suit squarebore or vacuum secondary models.\u003c\/p\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":42955970347105,"sku":"KH34-8","price":39.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/KH34-8_spreadbore_double_pumper.png?v=1765364602"},{"product_id":"holley-main-jet-extension-122-5000","title":"Holley Main Jet Extension 122-5000","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps control fuel uncovering\u003c\/strong\u003e - Used with secondary main jets during hard acceleration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag strip useful part\u003c\/strong\u003e - Designed to help maintain fuel pickup as fuel moves to the rear of the bowl.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequires a notched float\u003c\/strong\u003e - Must be used with a compatible notched float.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHolley 122-5000 is a main jet extension for secondary main jet applications. Holley notes it can help prevent the jets from being uncovered as fuel rushes to the back of the bowl during extreme acceleration. It is commonly used in strip or hard launch setups and requires a notched float.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 122-5000\u003c\/li\u003e\n\u003cli\u003eBrand: Holley\u003c\/li\u003e\n\u003cli\u003eProduct Type: Main jet extension Qty 2\u003c\/li\u003e\n\u003cli\u003eUse: Secondary main jet applications\u003c\/li\u003e\n\u003cli\u003eInstallation Note: Requires notched float\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart 122-5000 is a Holley main jet extension for secondary main jet applications on performance carburettors. It helps prevent jet uncovering under extreme acceleration and requires a compatible notched float.\u003c\/p\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":44017712791649,"sku":"HOL-122-5000","price":19.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/Holley-122-5000-Main-Jet-Extension-1.jpg?v=1776348863"},{"product_id":"adjustable-metering-plate-kit-holley-750-vac-list-3310","title":"Adjustable Metering Plate Kit Suit Holley 750 Vac List 3310","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade to Jet Tuning\u003c\/strong\u003e – Converts Holley 4160 \u0026amp; 4150 carburettors with fixed metering plates to accept standard replaceable Holley main jets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Compatibility\u003c\/strong\u003e – Works with Holley, 750 Vac 3310  carburettors featuring Centre-hung fuel bowls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit\u003c\/strong\u003e – Includes adjustable metering plate, notched float for clearance, gasket, and Phillips-head screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Adjustable Metering Plate Kit is a direct replacement for Holley 750 vac and is designed to convert 4160 \/4150-series carburettors with fixed secondary metering plates into tuneable units that accept standard \u003ca title=\"Holley Main Jets\" href=\"https:\/\/carbparts.com.au\/collections\/jets-air-bleeds-boosters-holley-tuning-parts\"\u003eHolley main jets\u003c\/a\u003e. Ideal for performance tuning or modern rebuilds, it allows precise fuel mixture adjustments without replacing the entire baseplate or fuel bowl setup.\u003c\/p\u003e\n\u003cp\u003eThe kit includes a notched float for clearance of the jets, a new metering plate gasket, and Phillips-head screws to replace older-style clutch head fasteners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMain jets are not included and must be purchased separately.\u003c\/li\u003e\n\u003cli\u003eRequires externally adjustable needle and seats.\u003c\/li\u003e\n\u003cli\u003eIf your carburettor has a power valve cavity on the secondary side (common in early 3310 models), you will need to use the  “Cavity”  plate to replace the original steel block-off plate that covers the cavity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible with Holley 4160\/4150-series and other aftermarket models using centre-hung fuel bowls.\u003c\/p\u003e","brand":"Gator","offers":[{"title":"Default Title","offer_id":44154971684961,"sku":"RK343-3","price":145.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/2282\/5057\/files\/RK343-3AdjustableMeteringPlateKitforHolley41504160list3310750VacCarbsincludes116-11Float.png?v=1778152988"}],"url":"https:\/\/carbparts.com.au\/collections\/metering-blocks-holley-tuning-parts.oembed","provider":"Carb Parts","version":"1.0","type":"link"}