I agree it's gonna take the higher stall. Have you thought about a Trans with a Lockup TC? Would help with the streetable problem. You can get parts to convert a TH400 to use a Lockup TC now.
You have given me hope that I may one day get my car to see some air!!!!!madmaxx57 said:ok heres an update! 78 malibu..383, t350, 3500 stall, 4.10's, et streets=2 inch wheelie for about a foot!!!!!!!!!!!!...throttle stop, shifts itself at 4800..12.70s...97 degrees hot and sticky..not huge air..but hey its a start..no pics yet but they are coming..thanks hp junkey for believing!!