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Accelerator pump cam question about holley

January 22 2012 at 4:03 PM

Mike  (Login 418_hipocoupe)
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from IP address 75.16.36.231


Response to Accelerator pump cam question about holley


Yeah I always thought/seen the pink cams on performance carbs(new). The green cam is the most aggressive one (large initial shot, not total volume), it's what I use on the primary of my DP. Large cam and large intake plenum equals lots of fuel from the primary accelerator pump. I havent seen much benefit from changing squirters, but definitely the cams are the main tuning aid. Why not pull the cam out and verify the number on it, if it is a 290/green then you are probably too rich depending on cam/intake. Purchase an assortment pack and try some other cams.

There will always be a slight lag between throttle and pump discharge starting out from the closed position for the most part, but should not be excessive.

As previously mentioned, just make sure there is not free play on the arm and the cam.

 
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