I had a 3000 stall in the donor truck before I wrecked it, and it seemed to work good. Maybe I'll try a 4000 stall if the 3000 I have doesn't cut it. I can't really dyno this combo yet, because I'm needing to buy an intake for my carb setup. I think I'll do the performer rpm, because the truck will be cruised + the Perf RPM has a range of 1500 to 6500. That should be good enough for that cam...right?