360 build questions

Hi all, new to the boards here and have a few questions I hope I can get some input on. I'm planning a 360 build , I have KB Hyper pistons and a purple shaft cam 2992 w/ 280 duration and .474 lift and 340 X heads. Also a Strange S-60 rear with 3.73 gears.I'm in the process of rebuilding a six pack set up for it and was wondering what range torque converter I will need in the 727 transmission ?, and any other helpful input will be appreciated. Any idea of hp output too.