750 Brawler vs 650 AVS 2 at the track, right OOTB !

Did you factor in booster restriction in your calcs? If you have ever pulled down a Carter/Eddie carb and looked at the booster and compared it to a Holley downleg you would understand what I'm talking about. Add to that the fact that the primary booster in the AVS is annular in design then its even more restrictive again.
Nope. I was just curious about venturi and butterfly sizes of the two because carburetor cfm ratings don't mean squat.