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Too many variables here. But if you drop.020" from the stock (approx .050")gasket to a .030" and you are at 9.2:1 you would be9.5:1. You got to pull it apartand take some measurements to know.
Snod, go to Bigboyzracing.com and use their compression calculator. You just load in your engine variables and it does the rest. They give you examples and prefill the boxes so all you do is change what needs to be changed. It will also let you see what effect different cams and other modifications will do to the compression.
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RE: compresion
