Torque Converter? Where am I at? What is compromised?

I sorta agree....but there are some really crappy converters out there. If he has one of those, he could gain a lot even on the street. He DID ask.
Totally agree !! I have 4 buddies that have all out drag cars !! Not street cars . My point being that 3 of them have 8 inch 5500 conv. 1 has 9.5 5500 conv. All 4 can put the pedal on the wood they flash stall approx 3500... All 4 cars leave off the trans brake at 4400.. Let the brake go all 4 cars will jump to 6500 to 6800 shift at 7200 to 7400... After shift drop back to that 6500 to 6800 and cross the traps around 7000 to 7200.. All 4 of these cars are 5.30 to 5.50 1/8 cars ... With all that said, I think it possible for OP to have a high stall conv and it still be very street friendly.. Custom conv in the last 10 yrs have come along way ! IMO you can have the best of both worlds with a good custom conv....