Recommendation on torque converter stall speed?

Application is a 1978 Jaguar XJ-S w/ a 1st Gen Small Block Chevy.
Currently has crate/smog motor that was swapped in place of the V12 in 1988.

I'm pulling the current engine to install another 1st Gen 350 that I had built up years ago and month-balled - new engine specs:
- 350 bored .060 / decked & line honed.
- Double Hump Heads (Ported - 2.02/1.60)
- 9.8 Compression - flat tappet cam
- Dur 288 Int / 292 Exh (224 @ 050) - Lift .450 Int/.460 Exh - Lobe Ctr @ 114
- 377 hp @ 5500 / 395 Tq @ 4500
- TH350 Transmission w/ 3.31 rear-end

Intent is street driver / cruiser - looking for reasonable pep / reaction times but street-able.

Stall speed recommendations?