Been working on first set of these I've done....
Out of box, W/2.15 Ferrea Comp Plus
LIFT---IN
.100"--68.7
.200"--147.1
.300"--212.9
.400"--268.6
.450"--286.6
.500"--294.4
.550"--303.6
.600"--312.4
.650"--324.3
.700"--321.6
ICH claims 330 @ .700" in their literature.
I did a VJ, and a 10 minute seat/ST blend:
LIFT---IN
.100"--69.6
.200"--146.8
.300"--210.2
.400"--265.7
.450"--292.0
.500"--310.3
.550"--320.9
.600"--331.9
.650"--331.9
.700"--331.9
I was'nt happy with the shape/size of the ICH short turn so.... another 45 minutes of work....(also opened Pushrod area .100")
LIFT---IN
.100"--69.6
.200"--143.6
.300"--210.2
.400"--268.9
.450"--294.2
.500"--312.6
.550"--331.2
.600"--343.6
.650"--351.4
.700"--360.8
Misc notes:
Actual Min CSA of the out of box port..... 2.85" 245 CC
Actual Min CSA of my 360 cfm port......... 2.95" 255CC
Intake manifold fitment is a definite concern, as the out of box port window is 2.4" tall. So after port matching the 360-3R ICH manifold you have ~.060" of gasket sealing area above the port.
The exhaust port and chamber are basically the same as the 230 CC CNC -2 head.