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Well I hope it's not out of the question, cause we're getting ready to rebuild a 440" sb mopar on pump gas and 600 is our minimum target!

Someone else built it the first time, and it made only 577HP but was eating itself.
We will be fixing all the problems and shooting for 620HP on pump with only 10.5:1.

We're using his Indy 230cc -2 heads over and it's a nice siamesed bore R3 48°lifter bore block.
It's a flattappet engine as well....
Brian



Brian, the original poster was asking about doing it with eddie heads, not Indy's



Yeeeahhhh. I figured that one out. Thanks.
I posted mostly because I feel the same way as others...eddy heads won't get you there IMO.

Brian Hafliger