Selection of Torque Converter and Rear Gears for Hot 340

What is it going into and what is the overall intended purpose? What rear tire size are you planning on? Going to need your carburetor numbers (CFM), cam grind, and probably cold cranking compression. "Hot" is too relative of a term for any real specific recommendations, as it could really mean anything from 3.73 to 4.30 gears for a street car, depending on it's intended usage.