L
lightening800
Well-known member
tried to do a search but came up with nothing so just a simple question, how much boost [safely] with stock motor with 50/50 c12 or 110. i have had it to 10psi with 91 pump in altitude with no issues and am going to 12 with 50/50 or ave gas is 12 the max for this engine safely with no head shim? thanks for your inputs. Dwayne