Quote:
Originally Posted by bigjimzlll
That was on a REAL dyno,not some made up..need to sell parts...magazine fiction story.
Yes the heads are the limiting factor. How much does the GM 572 make?
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My 431 big block iron head rectangle port dynod 684 to the flywheel on a real dyno and a proform 950 carb with a 680 lift solid roller. Bought my motor from awsome engines.