Is the m1 faster then the air gap

I'd say borrow one and find out, but that isn't allways so easy now is it?

You failed to mention the cam specs, though, I beileve the rest of the car is designed to ignore any torque production below 4500, where the RPM is superoir.

Up top there about equal really. I just don't know how the M1 or the RPM is above 6500. Both intakes are rated to that RPM. Just because the pull above that RPM doesn't mean the engine or intake is making power worthy of being there.