Lets have some fun!

What year engine? what compression? You just don't throw a cam in it, without knowing what you want as far as: max rpm, carb, valve float, head flow, gearing, etc.
Talk to cam guy/engine machinest; what is you goal? Street? Strip? Both?
Tell them what, they will need that, and weight of car, (a/c? etc). Then transmission guy needs info (cam, gearing, weight, usage). It gets complicated with all these variables.
All components all need to function as a team.
A buddy with a 69 440; his last experience with a jax, fla machine shop was bad-3 trys until it stopped spitting particles from the mains. Talk to Dan Dvorack in Waldo, Fl. We have seen the engine, going into final assembly room. Have seen the parts to be installed, Have had our crotches sniffed by his 3 large Poodles. Lol. He talks to Forte@ Turbo Action to build the tranny.
Call Dan; he holds 20 class wins, and 26 national records; he will talk to you.