340 Max HP Potential with X/J heads?

MOPAROFFICIAL said

I get that too and none of what's mentioned includes moving the push rod or re locating the pinch. We are talking stock rocker stuff.

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furrystump said

Dwayne Porter got about 275 @ .550 lift average out of my X heads. IIRC. Without moving the pushrod pinch that is a pretty serious effort for an X head.

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Thanks for mentioning that and vindicating me and my past mentioning of how a factory head can not only be a good performer and ported well but a truly viable alternative to aluminum heads.

But yet everybody cries “HEAVY”, “ALUMINUM “, “BETTER FLOW” and so on.

With 260+ cfm available, shiiiiiiiiiit, if you can go fast now....

LMFAO!