Holley Accelerator Pump Cam Assortment Kit RG20004 1980-1988 Mercury Cougar

1980-1988 Mercury Cougar

This design incorporates the strength of a copper-lead alloy layer on a precision steel back and finally

1971-1973 Ford Mustang

Super Lock

Easy To Read

Holley Accelerator Pump Cam Assortment Kit RG20004 1980-1988 Mercury CougarAnother great tuning kit from Holley. This one will allow you to "tailor" accelerator pump performance to the engine's actual requirements. Each cam has a different shape or profile to give different results. Cam "lift" 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