I copied this from a post at moparchat.com

Hello Guys, I usually post and look around in the Circle Track area but thought some of you would be intrested in seeing these numbers.
Let me know if I can help. Allen

here is what I have. This is on a sales brochure I received from Indy Cylinder head. ALL NUMBERS ARE UN PORTED.

Intake Exhaust
80.7 @ .100 75.6 @ .100
134.5 @ .200 135.4 @ .200
189.8 @ .300 174.8 @ .300
235.6 @ .400 193.7 @ .400
250.5 @ .450 196.8 @ .450
263.1 @ .500 198.4 @ .500
266.7 @ .550 198.4 @ .550
267.9 @ .600 196.8 @ .600

4.030 bore, 8mm stems 2.02 1.625 valves

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)