How about this 416 in a 70 3000 pound duster which i drove to a 9.90@136. Indy heads,indy intake,jesel rockers,13.1 comp,1050 dominator, 276/281@50 630/630 solid roller,6000 stall and 4.30 gears? how any horses? And this is a *59 motor.this was suppose to dyno at the wheels, i think 500