508 rwhp at 3700 lbs. ran 10.40 at 129.1 mph
636 rwhp at 3800 lbs. ran 9.54 at 140.4 mph

Same car, 2 different engines, same DynoJet chassis dyno.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax