Quote: I'm sure this is a stupid question, but why not test flow at a vacuum level similar to the actual port at wide open throttle? Like 1 inch? WOuldn;t that be a more realistic test of the ports performance in the engine?
The 1.0" to 1.5" WOT pressure at the carb isn't the same as the pressure seen (felt?) by the head & cylinder during the intake & exhaust cycle. Same engine, but very different conditions being experienced in different locations of the induction system.
