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I have an '07 summit and the stock compression is 12.15-1 I just bought the SLP performance package for my sled and it's not the highest one, but it is in the range of 3000-6000ft, I am hoping that it will still work at 2000ft (my house) with running 91 octane.
I think the new heads only bump it up 1 compression point (not 100% sure though) to 13.15-1
or do i need to start running a race gas/pump gas mix!? any recommendations? will octane booster do anything?
I think the new heads only bump it up 1 compression point (not 100% sure though) to 13.15-1
or do i need to start running a race gas/pump gas mix!? any recommendations? will octane booster do anything?