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

273 said
It's crazy to come any conclusion other than both carbs did very well under the circumstance.
Not definitive proof of anything.

Agreed. Fully tuned, which carb might light what spacer, etc.. hard to say where these would end up. I can tell as crisp and clean as both these carbs ran, there wouldn't be a ton left in the tune to find.