Just as with original max wedges, I'm sure the narrowing and rather severe port window angle is no doubt better than a standard port.....but is still limited by the lack of the raised roof and floor and the limited cross section due to the standard spring pocket and rocker arm geometry. This makes the transition to the bowl a pinch point.....but I suppose the MW logically increases the intake plenum volume and "charge" filling (or pushing through) the hole.

I always wondered where the crossover point between a low port Max wedge and say a raised standard window port like a TF 240 really shows up for a typical 550-650HP 500" combo.

It's a case where dry flow on a bench might show similar flow numbers....but in reality we know the suspended fuel doesn't 'turn' as easily as the air.

The stealth heads still look to be a great bargain, particularly when OEM sleeper appearance is a priority. 255 is a pretty decent port cc especially compared to a 906/452 port