Arrington claims 630 ponies out of a 426 inch gen 3 using a much bigger hydraulic roller, little more compression, and a way better head that goes 370 cfm and a drag pack intake.
I didn't mean to imply dyno numbers aren't good for comparing different motors on same dunk, but same motor on different dyno can yield way different results that mean nothing except for tuning and checking for leaks
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, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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