No problem, I can give you any kind of intake flows you want just by changing the radius plate. (1) no plate, (2) 1/4" clay roll, (3) 1/2" clay roll, (4) radius plate #1, (5) radius plate #2

Lift.......(1).......(2).......(3).......(4).......(5)

.100.....74......75...................75...........75
.200....151.....153................153.........151
.300....206.....225................225.........219
.400....229.....274................279.........272
.500....236.....291................317.........320
.600....239.....295................323.........338
.700....239.....284.....312.....315.........333

And yes, all intake ports I tested began to stall between .600" and .700" lift.

I probably have been making a mistake as to how I open the exhaust valve at the beginning of the test and skewing the opening lift flows. Here is what I get now, on this one port, with no pipe and then w/ my 2" pipe design.

Lift......no pipe......2" pipe w/belled end

.100......52.............53
.200.....119............133
.300.....161............185
.400.....192............227
.500.....211............251
.600.....223............267
.700.....230............273