As a point of reference, a bigger cube motor than the OP’s, that ran in the same series built to a much higher level(no disrespect, just is it what it is), that made what I’d estimate is roughly 100hp more........ only used 730cfm@6100.

If you want to know “how much” ET is left on the table with a carb, from either a calibration or capacity standpoint, borrow something like a Holley 850 or 950 from someone and see what kind of improvement there is.

On another build for that same series, also bigger cubes....... there was basically zero difference on the dyno between a Holley 750dp with the choke removed vs an Eddy 800.
That motor used 720cfm @6500

Motors of this type, in legal trim.......are going to be down about 100hp+, compared to what you’d see out of a comparable bracket build would make.

That being said, we tried a correct 383 avs on one of the motors compared to the Eddy 800, and it was down about 30hp.