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Holley Accelerator Pump Cams 20-12

Holley 20-12 - Holley Accelerator Pump Cams

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Accelerator Pump Cam Kit, Holley, 2300/4150/4160 Carburetors, Kit

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Brand: Holley

Manufacturer's Part Number: 20-12

Part Type: Carburetor Accelerator Pump Cams

Product Line: Holley Accelerator Pump Cams

Summit Racing Part Number: HLY-20-12

UPC: 090127207451

Accelerator Pump Cam Material: Plastic

Quantity: Sold as a kit.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Holley accelerator pump cams will allow you to "tailor" accelerator pump performance to the engine's actual requirements. They include cams that have 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 sloping ramp will spread the pump action over a longer period of time.


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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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