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vaccum help!!

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Old Aug 3, 2003 | 01:23 PM
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pskel350's Avatar
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From: SW Michigan
vaccum help!!

i put a vaccum gauge on my car today to tell me what power valve i need for my holley carb. I thought i would see around 5 inches of vaccum or so, but the gauge says i have 19

i know the gauge is right too, since it was calibrated when i picked it up from my dads work.

isnt this to high of vaccum? what do i do?
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Old Aug 3, 2003 | 05:28 PM
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Street Lethal's Avatar
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Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
That reading is perfect!

What are the cam spec's, and what size rocker's are you using? A reading of 19 is perfect bro, and a reading of only 5 would indicate a serious vacuum leak somewhere....
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