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Posted

sup guys,i wanna get my head milled but dont know exactly how much i can go because i will use race gas when i go to the races and when i wanna go cruising i wanna use 93 oct. gas iam at sea level by the way , so anyhelp is apreciated

Posted (edited)

.030" is safe. Running race gas will not benifit you at this compression ratio. Actually, you would need to rejet for different fuels because the specific gravity of race fuel is lighter than that of pump 93 octane in almost all cases.

Edited by fixitrod

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