Everyone says to "upgrade" to a TH400 or PG once you get over 1000 HP. Other than the obvious things like the availability of aftermarket SFI cases like the Reid, what makes the GM units better?
'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.
