Eric's cam challenge

Newbomb Turk said

I think I know why, but I’m keeping it to myself.

But I don’t think it’s header sizing or flow.

In fact, the math I use doesn’t ask for flow, header sizes or anything like that.

Click to expand...

I'm trying to figure out how that would work ? Guessing along with flow, csa and velocity also wouldn't be factored.

If say you took a 340 with 318 heads vs X heads vs Trick Flows and ran the same/similar cams and cr with appropriate intake and exhaust systems. Could see making similar hp per cfm but the hp and rpm be vastly different from one another. Not saying your wrong just not getting how head flow (cfm/csa/velocity) don't play a major role in cam choice?