Low Engine vaccum
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Joined: Dec 2006
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Low Engine vaccum
I’m getting a steady reading of about 13.5 inches of vacuum which I know is low. What should a normal reading be? I put a comp cam in my1991 Z28. Could that affect vacuum readings?
Supreme Member
Joined: Jan 2008
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Car: 1986 IROC Z
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 3.23 Posi
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