New torque converter?? (and cam question)

So what is the rest of the combo? What's been done to the engine? What exh? Intake? Carb? Ignition? Heads? Be very specific. If you have a current engine, you have to know all about it to get the right cam, and then with the right cam, you can pick the right convertor. All the parts work together, so tell us what else you have for parts.