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

The whole point of the test was "out of the box". I was clear that neither carb was tuned for "my" car. I will say, I was surprised that 2 different style of carbs rated at different CFM's right out of the box would run within a 100th of each other. That to me was more stunning than anything else from this test.

I'm curious how the venturi and throttle bore sizes of both carbs compare.