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Mean416 said
Very curious what you guys think is behind these numbers? Is it flow?

I wouldn't say flow cause basically every carb is gonna flow around the same amount be it 500,750,1050.
Definitely less restrictive, less pumping loss.

Mean416 said
Better atomization

If it same, similar or even slightly less you would think it could be a plus cause of probably less pumping loss, guess atomization could possibly be better.

Mean416 said
and distribution?

Maybe somewhat but the manifold opening is small and not design to take advantage of it.