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Author Topic:   Accel. Pump Cam?
Dirt Freak

Total posts: 279
posted April 01, 2005 01:14 PM  
I'm putting together a good spare 4412 Holley 2bbl and was wondering which accelerator pump cam to use. I've got a new carb with a relatively small orange one and 30cc pump, but I've used a good old proven carb that has a large red cam with a 50cc pump. I've been playing around on the bench with the cams I've got and adjusting the pump lever and found that there is a big difference in pumping action among the different cams. What's a good place to start guys?

Dirt Freak

Total posts: 402
posted April 01, 2005 02:06 PM  
50cc and Orange cam.

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