I haven't compared intake runner volumes. I have a stock M1 intake here so I'll give that a try. Might be interesting to see the volume difference if I can figure out a way to measure it accurately.
No flow sheet with the intake, never thought to ask them for one. I don't know if they flow them after porting or not.
Grease and some plexglass too block the runners and fill it with some water from the beaker, well a few beakers anyway. I bet the difference in volume between the two is significant.
