the cam just recommended via the Summit link would be about perfect, provided you run a set of headers and 2 1/4" pipes into a single 3". That'll be an easy exhaust setup and only need one good muffler instead of two cheap ones.
A quadrajet is not the HOLY GRAIL of carbs as some proclaim them to be. They work well, but a well tuned Holley with a decent intake manifold can do just as well and is easier to tune/modify/replace. a lot of people screw up their 600's so they get a bad rap, but they're not a bad carb, for that matter neither is an Edelbrock. Holleys are just the cheapest to work on that I know of, and cheapest to buy used. Edelbrocks are the cheapest new I believe.