Enigne Vacuum

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Jul 6, 2004 | 03:07 PM

Marcus34

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Joined: Oct 2003

Posts: 59

Enigne Vacuum

what is normal engine vacuum for an lt1. my engine was rebuilt and has like 350 miles on it. it has between 13-15 lbs of vacuum.

Jul 6, 2004 | 03:09 PM

Injuneer

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Joined: Nov 1998

Posts: 71,110

From: Hell was full so they sent me to NJ

Your intake manifold vacuum, at idle, with a stock cam should be around 20-21"Hg (inches of mercury).

Jul 6, 2004 | 03:34 PM

Deenasty

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Joined: Jan 2004

Posts: 1,322

From: San Francisco

i have 11 with my zzx cam

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