Holley Secondary Pump Cam
11-05-2009, 07:48 PM
#1
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Car: '84 Z28
Engine: 350
Transmission: T-56
Axle/Gears: 4.10 10 bolt
Holley Secondary Pump Cam
Hey everyone. I know the blue pump cam is common for the primaries, and I was curious, which color pump cam is recommended for the secondaries on SBC's?
05-10-2013, 11:07 AM
#2
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Re: Holley Secondary Pump Cam
Really gonna depend on the carb size and what the motor wants. Does the carb have the 50cc rear pump or the small one? I have holleys on a couple of my camaro's and I have only changed the pump cam on one and I don't remember what color I went with. Its mothers day weekend, so I probably won't get a chance to look until next week as to what we are using.
05-10-2013, 11:58 AM
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Car: Yes
Engine: Usually
Transmission: Sometimes
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Re: Holley Secondary Pump Cam
In all my days, I have NEVER seen a carb that was dialed in SO GOOD that the "next worst" thing wrong with it, that needed tuning, was THAT. 
"Measure with micrometer, mark with chalk, cut with axe."
Put whatever comes in it, in it; and run it.
"Measure with micrometer, mark with chalk, cut with axe."
Put whatever comes in it, in it; and run it.
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