Airflow to Cubic Inches

Earlie A said
I haven't read the whole post, so forgive me if I write something that doesn't apply.

It started off as a hypothetical but the OP is figuring out the best heads for a 650 hp 493, PRH already gave the answer.

Earlie A said
Peak VE will occur at peak torque RPM, not peak power RPM. If the equation is used for anything, it should be used to calculate max air flow at peak torque, which will occur about 1500 rpm before peak power.

I disagree, yes peak ve will occur at peak torque but rpm is lower, at peak hp ve will be down but more rpm so should be flow more air overall, just less per cycle.