My old 422 w5 was done about 7400-7500 or so...... 273/280@50 roller.... Went 9.80's at 135 in a 3350 pound car with 727. Shifted it at 7 trapped about 7400.
Current owner shifts it at 7500. Went with bigger more aggressive roller, another point in compression( from 13 to 14 to 1) car has now been 9.62@ 140 weighing 3220.
It actually was quite done around 7500 at 422 inches, definately on the downward ramp power wise, with my smallish cam.

Last edited by B3422W5; 08/19/15 09:21 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17