Holley Main Jet Extension 122-5000

• Helps control fuel uncovering - Used with secondary main jets during hard acceleration.
• Drag strip useful part - Designed to help maintain fuel pickup as fuel moves to the rear of the bowl.
• Requires a notched float - Must be used with a compatible notched float.

Holley 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.

Specifications

• Part Number: 122-5000
• Brand: Holley
• Product Type: Main jet extension Qty 2
• Use: Secondary main jet applications
• Installation Note: Requires notched float

Part 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.