360 dyno

This is stock exhaust manifolds into 2 1/4 with h system, and we bump the jet to get max performance out of the 650 without going to 750 and 110/113

That doesn't help if the carbs original calibration was spot on. The 750 has a larger jet because it can pass more air.

Putting larger jets may not help performance and could cause it to go backwards. The increase you have may be as much as 18% in fuel delivery that is unneeded.