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Originally Posted by whitethunder46
It should be the same as the PI, the only difference is heads/cams/intake. The shortblock should all be same internals/rings/etc. But yea, usually nothing more than 8-9PSI if you like to get on it a lot.
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No because the PI engines have diff. internals and the heads are very different. PI motors have higher compression than non PI cars because of a smaller combustion chamber made by the different heads.