I know this isn't completely on topic, but here goes anyway.

In every instance I've increased the volume under every mopar head I've tried (primary limiting factor) I've gone faster. From -1s to predator, stock hemi head to millennium. The heads have been over faced with job in almost every attempt, yet inches alway resulted in speed. Even when the efficiency was apparently less.

Let PS have 501 CI , or 600 withe the same induction, and they'll go faster too.