Quote:
Originally Posted by slowbird
Fwiw our 400 has a cranking compression of 165psi and runs 11.4s-11.5s not sure why you say they need 180psi.
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I just checked my 900 hp E-head engine and it had 160 across the board..... and then I tried a different gauge and it went up a chit ton! I'm going to use the lower numbers when I run pump gas and the higher ones when I'm burning high octane.