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Discussion Starter #1
Im looking on a compression computer and need to know what the 91 forged piston ccs were and are they dished or dome flat or what have n0 clue
 

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Discussion Starter #3
no im running 61cc trickflow what do you think that would be.
 

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Depends on a few things. But probably around 9.3 I'm guessing. If the only difference you have from stock is the heads, then it won't bump compression much. Stock E7 chambers are 63cc I believe.
 

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Discussion Starter #5
no the whole tfs 365hp kit
 

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I meant as far as things that will change your compression ratio, like stroke, bore, and pistons. If you're stock stroke, stock pistons, regular gasket, with those heads then that's my guess. Tough to say because I don't know how far in or out your pistons are in relation to the deck and what gasket you're using, but even then those will only vary it maybe .1 to .2 points.
 

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Discussion Starter #7
I should be able to run the cam it requires 9.1 comp thats why i asked
 

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