torque convertor and auto trans

Wondering what stall to use on this motor.585 HP.640 torque at 3900.Will be mostly street driven.Thought i read somewhere,one thought is 500 RPM below the RPM where it makes peak torque.Seems a little high for the street.Also what a good auto trans for it.

bump

4000-4500 9 1/2" j type , good cooler deep pan

Best thing to do is call the converter company you plan to use and let them tell you what you need. I am using a Luppo Dynamic 9.5 converter that flashes about 4200 but drives like a normal converter. I make about 600 flywheel hp and about 540 to the wheels. Ron