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

Converters can be a complex subject. Modern converter technology is nothing like it was even ten years ago. You can get a converter that will flash to 5000 RPM but be tight enough to drive to work every single day. Of course, you don't need that. But the fact is, you could and it would be tight enough that it'd still get decent mileage, not have that "slipping clutch" feel and not generate an excess amount of heat.

I agree that a 3000 converter is pretty mild there. That's not far off from what a stock Chrysler high stall converter was. They generally flashed to 2500 or so.....one might go to 3000 behind your 512, since converter flash is directly related to an engine's torque.

If that was mine, I'd have a custom converter made that'd flash to 3800-4200. They can make it plenty tight at cruise RPM so as not to have excess slippage and yet, when you hem it up to launch, flash to that 3800-4200 stall speed and be a real beast on launch.