What I am saying is, while some of them were rated at 750CFM, none of them flow that much. You have to remember, Carter had a different means by which they measured CFM, so it's not comparable to "everyone else" and always ends up on the low side in comparison. I get what you're saying and I agree, that's what "they said" some of them flow, but it's just not the real numbers. That's why when the old Holley 3310 750 was swapped on, they picked up every single time.
