what torque converter

ok here's a real knee slapper. I can ask 10 people about a torque converter and ill get 10 different answers.
so, I have a 67 barracuda full tub car,w/cage, housing a 71 340 30 over, cam 508/292, rear 4.10, tire 29/18.50/15 weight of car approx. I'm guessing 3200 lbs. trans auto, carb 750, intake comes in at 1500-6500 heads 302 cast with port/polish and am/fm radio. question what would be a reasonable stall conver, for this set up. is that enough info.
You left out the most important things; how much cylinder pressure, and what is the ICA, and what application,lol.?
The less pressure you have, the less bottom end that monster has and the more stall you are gonna need