Usually 6-8 psi.
BUT, understand that anytime you relentlessly hot rod any car with any engine/combination the potential for failure increases a hundredfold.
Ur best off to through some 8.5/1 pistons in and pick a cam with just a touch of overlap when you wanna start running higher poundage 20+ and a reinforcament girtle is a good idea then as well as well as a crank lol did i miss anything?
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