Mopar Muscle Magazine 360

Looking at the dyno results when the engine had the 650 CFM carburetor on, it's stopped gaining horsepower at 5800 RPM. then when it had the 750 CFM carburetor at 6000, where they shut off the test, it was still making power. They did not take it to its peak.
That motor is designed for more RPM than 6000 with that combination.
Probably would need some oiling system modifications though if they were going to run at higher rpm for very long.