What is a good stall to go with a 3:23 Sure Grip?

Relax RustyDude...I was busy and I am not watching the board all day long like you might be. The best info I have on the engine right now is the following....

1992 360 Magnum block heads and crank. Crank is std/std and the block is fluxed for cracks and blasted clean, bored .020 over. Cam (no spec yet but hoping to have it soon but it is the stock camshaft that comes with the 390HP 360 crate engine), all bearings, valves, springs, keepers, locks and seals, rods. rockers, lifters (hydraulic). pistons (10.25:1, .020 oversized) are all brand new. Upper is Victor Super intake with an Edelbrock AVS2 750cfm. The front end has been set up to with with 69 and older style rad and hoses.

Tranny is a stock 904 but will be rebuilt with a shift kit.

Engine is purchased after I got the car, the rest of the drivetrain was already in it.
Ok, fair enough. Thanks. So here's my question. Is the rear gear there to stay? That's a pretty lumpy cam from memory and it needs more stall than 2800. I'd go with a tight 3200-3600 if it was mine.