tranny upgrade advise

[78chevstepside]

Iam current in the process of installing a motor in my 78 c-10 stepside. Iam installing a 71 350 4 bolt block with 1.94 heads with flat top pistons, bored 30 over, double roller chain, roller tips, with a wolverine 280 cam. Iam backing this with turbo-350 tranny. I need advise on what kind , and how big of stall converter and maybe a shift kit and tranny cooler everyone would recomend. It curently has 2.73 gears with a limited slip rearend. Iam also running hedmen headers with h-pipe and 40series flowmasters.For carburation i will be running a 1406 edelbrock carb with a performer intake. Iam thinking i need at least a 2000 stall. this truck is a 2wd with a 4/6 drop with drop spindles new shorter coils with a flip kit and notched frame in the rear. thank jay iam also a new member