need opinions on which converter and controller

[jjump59]

Going to run a 4l80e behind a gen 1 421 sbc, about 550 hp in my 69 Camaro and wondering which converter and controller you guys are running or would suggest. Cam is a comp solid roller xr280, has around 550 lift and 280 duration, they think it needs a 2800 stall but i'm not sure we need that much. thanks for any help you can give.