Vacuum secondaries
10-07-2002, 05:58 PM
#1
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Vacuum secondaries
I was wondering how you tell if the vacuum secondaries of a carb are opening. Does there have to be an engine load? This weekend i tired to see if mine would open, i have the lightest spring in my quick change holley carb setup. And they would't open when i park, even revving to 4500 rpm.
10-08-2002, 11:27 AM
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Car: 1999 Pontiac T/A Firehawk
Engine: ***'s Engine
Transmission: T56
I used to think that too, I mean, every V8 I've had was like that. But the air valve on my Oldsmobile will open revving it in park.
Maybe only small engines do that
Maybe only small engines do that
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