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

Bigger is not always better........
One carb might have more airflow, but does not atomise the fuel as well.
AVS2 has annular primary boosters to aid atomization. Secondary boosters are regular. If using an Airgap style manifold the annular boosters really aid atmozation for low speed driving and cruise.