BVoelzke said My 408 made 539 hp and 502 tq. R3 block, 9.8 comp.,Indy 360-1 heads, Indy intake, 750 hp carb, 600 lift mech. cam, 904 , 4900 stall converter, 4.30 gears went 10.70s in my 3150 lb. Dart... motor might be for sale soon. Click to expand...