[blm]

Hey Im having an issue with my 69 concerning fouling plugs and showing low vacuum. Was wondering if anyone local would allow me to compare the reading on your vacuum gauge with the reading on my gauge. If more convenient I could bring my gauge to you and just hook it up to your engine for a comparison with your gauge to see if they report the same. That way I can eliminate my gauge as the problem.
I work at the Canton/Akron airport so that is a possibility as well. Below is the thread involving my problem.

First Run With A/F Meter

You have a 496 with a 245 @ 0.050" 110 lsa cam and you only have 6" vacuum at idle? It should have more than that. My old 355 had a 264 @ 0.050" 106lsa cam and it idled with 6" at 1,200rpm and the AFR was mid 13's. You need to check your full throttle AFR with the throttle wide open for...

www.chevelles.com

 

[lookback]

Just a thought, do you have another car or truck, just hook up your vaccum gauge with a quick rubber hose, some where near intake got to have a vaccum port. When ever I go to buy a car or truck I always always bring along a vacuum gauge to test out car engine health 15in and above with a steady reading is good.