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Your cart is empty.Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
Becky Scoby
2025-08-21 11:49:09
Not a lot of discernable differences in some of the cam profiles, but I was able to bump mine up a couple sizes on my 2 barrel Holley carb (4.3L GL-D Volvo Penta engine) to get my boat running phenomenal. I was having a little off-idle acceleration stumble until rebuilding the carb and changing this. Glad I didn't need to mess with my accelerator pump nozzles; this was the trick!
Brad
2025-08-20 15:48:00
Had all I needed to eliminate my off idle bog
Mike
2025-08-10 18:31:42
Returned
george a.
2025-08-07 15:03:56
Carbureter tune up
John H
2025-07-31 14:49:08
Fixed my lean spike. Ended up using the brown cam. A little pricey for what they are. But i have extras for the future.
M Long
2025-06-02 18:44:11
Cams received are colors that vary from Holley set. Appear to be aftermarket. Will send back.
Tom
2025-03-11 18:03:46
These are not genuine Holley parts. But, they are identical and indistinguishable once out of the package, and are available with same day delivery so what are you gonna do lmao
Mike Skurok
2025-03-09 18:34:03
Work awesome, can't tune a Holley without them.I had to go three colors up from the stock ones to get the response I was looking for. Mixture screws set at 2 3/4 turns.
Ken
2024-12-30 13:36:17
Good to have a variety of cams to try. Works better now!
Customer
2024-12-12 10:01:19
It's a good kit
Customer
2024-12-10 18:45:07
Excellent product.
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