Holley 20-12 Accelerator Pump Cam Assortment Kit

Accelerator Pump Cam Assortment Kit

• Each Cam Is Different Shape/Profile
• Gives Different Results
• Tailor Accelerator Pump Performance

 ACCELERATOR PUMP CAM KIT FOR HOLLEY DEMON and QFT

 This Kit allows you to customize your accelerator pump performance to the engines actual requirements. Each cam has a different ramp or profile to give different results. When you rebuild Holley carburettors Cam lifts directly affects the accelerator pump stroke, and, therefore, pump capacity. Ramp profile or shape controls the timing of the shot. A steeply-rising ramp shape will give a fast, heavy fuel shot right off idle. Conversely, a gently sloping ramp will spread the pump action over a longer period of time. Kit comes with screw to attach cam to carburettor. They can be used for Holley 2300 4150 4160, QFT, Brawler Barry Grant, Demon carburettors.