Thread: GM posi identification
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09-10-2005 01:45 PM #1
GM posi identification
I picked up a gm posi carrier ratchet style 28 spline but don't know any other details. How do I tell if it is a 7.5, 8.2, 8.5 or what series? All help is appreciated.
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance