Speedmaster Flow Limits

Not quite sure what you are saying with the first two statements. Care to elaborate?

I have read some of the theories behind large bowl/slower air speed/higher pressure/better throttle response/more torque. Is that what you are referring to?

Your last statement is certainly true even just on the flow bench.

I assumed the 40 was your top cut and the seat is the 50. IMO 88-89% is 45 degree seat throats. IMO you need to be 90.5-91% with a 50.

I’ve said the other statement many times. You can increase the flow and not gain power. Or lose it.