ok so its an 89 iroc-z 5.7 tpi, and a freshly installed t-56 with centerforce dual friction clutch and a borg warner 3.27 limited slip rear end...

so i was wonderign this is an adjustable angle what angle is best for my car?? also what is the stock angle??

I can't rmember off the top of my head but, I know he flat out tells you in the instructions