My neighbor had a 493" shortblock and bought E-street heads.
He bolted them on and made 502 hp and, as I recall 600 ft/lbs. of torque on a very conservative tune with a pretty small cam.
The Dart he put the engine in was very calm and had great street manners but was a torque monster!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
