In-Store Pickup Location Close

Holley Accelerator Pump Cams 20-12

$24.95

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

Estimated Ship Date: Today Would you rather pick it up? Select Location

Brand: Holley
Manufacturer's Part Number: 20-12
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.

Warranty

Most Helpful Reviews Review this Product

2 Customer Reviews for Holley 20-12 - Holley Accelerator Pump Cams

Average Customer Review

5 Star

(1)

4 Star

(1)

3 Star

(0)

2 Star

(0)

1 Star

(0)
+See All 2 Reviews

GREAT!

Helped me get my carb dialed in. Only complaint is no instructions letting me know which cam does what, took some trial and error but in the end I got it. Invaluable in getting a carb tuned properly.

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: ANTHONY from FL

Date: June 17, 2014

Appearance
Ease of Installation
Price/Value
Quality

These cams should fix your acceleration problems

Summit RacingSummit Racing Verified Purchase

With this good variety of cam profiles you will be able to clean up that acceleration stumble, hesitation, bog by changing the amount of, the timing of and the duration of your accelerator pump shot so you can taylor it to the weight of the car as required!!!!!

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: BARRY from Canada

Date: May 03, 2014

Appearance
Ease of Installation
Price/Value
Quality

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

Back To Results
Email this page Close
Close