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I have a 99-00 6.0 in my truck with 10#s of boost all stock engine with ls1 intake, What should I shift it at safly on 10#s of boost? Thanks for any help I have been shifting at 5800 rpms
I have a stock cube forged ls1 with stock heads and a 551lift cam.I used to shift at 6k but it seems to do better at 6200.So somewhere around 6 would be good