If you had $2K to play with...

The electric fuel injection is more efficient than any carb, cost about the same as a six pack set up, yet you get way more bang for your buck. I would follow my lead, find a 383 RB (raised deck) block and build a 431 stroker out of it. 440 source has everything you need from ported stealth heads and complete stroker kits, then slap an electric fuel injection on and move to the next part of the car.