moparracer said 70 Duster, low gear 904, 4.88's, cal-tracs, 416 small block with mildly ported W-2's, custom roller, Dominator or King Demon, 3300 lbs. 9.72 @ 135 1/4 6.10 @ 111 1/8 Dynoed 660 horse at 6800 w/ 580 ft/lbs torque. Click to expand...