I have both, Pro Flow and Pro M Racing 75MM mass air meters calibrated for #24 injectors and Cold Air intake. What would be the better choice of these two meters to use??????
It just so happens my Pro M meter was purchaced from you Rick. I know The original Pro Flow company was owned by Bob Atwood who designed the factory Ford Mass air meter then later purchaced by Sean Trotter of Pro M Racing. The Pro M Racing meter to me just seems to have a differant "sample tube" design in the way the incoming air is metered. Both meters I have have the same calibration the only other differance between the two is, the Pro Flow is the chrome pipe one and the Pro M Racing is the black plastic. As far as performance, I can't tell any changes between the two.