what should vacuum be?
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Supreme Member
Joined: Jun 2000
Posts: 1,295
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From: VA
Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
what should vacuum be?
checked mine the other day after getting the new engine running again and pulling 18" hg at idle. is that good or kinda' low?
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
your right in the ballpark as long as it is a steady reading.
anywhere from 17 in to 22 in at idle is good.
higher the load lower vacuum should be.
anywhere from 17 in to 22 in at idle is good.
higher the load lower vacuum should be.
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