Heres the way I was told to do it. If I am wrong about this someone let me know. You take the boost (10psi) and add it to atmospheric pressure 14.7 and then divide by 14.7. Multiply this ratio by the current displacement 302 and you get 507. I think thats right.
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85 GT 4bbl roller cam
2 ch. Flowmasters, O/R H-pipe
Performer intake and carb
milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch
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