Best Kept Secret in the Big Block Mopar World

MOPARMAGA said

Tell us the combo that's going to make 600 HP ?
I don't care about power adders either
No aftermarket head will work with that bore size.

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Here's one.. You wouldn't even need the fancy bottom end..
Over 600hp... with a dual plane
255@50 650 on the intake.
Mopar 412 Big-Block - Popular Hot Rodding Magazine
Now do me a favor, go piss off and annoy someone else.