What would be a good size carb be for my car?

[lyons17r]

I am running a all steel 383 with about 550 hp and I was wondering what a good gas carb would be. Like what cfm I should get, I can run a 4 barrel.

Would a 750cfm pro form carb be a good one.

[4bangerhotrod]

i would look for a good used kb, braswell or stealth off a mod with the same size engine probably be a better choice than a new proform cheaper and probably make more hp. or just run a regular holley if you cant find a good used one.