Which stall for this combo.....

Second the 5000 stall. I run a 246 @050 in a 360 with 10.7:1 with dual quad and 4.10s with 275/60 tire (and an 8" 5000 stall converter:)). Cam is pretty sluggish below 2500, but then the converter starts to do work and life is pretty great. My car is 95% track though too.