79' 360 2BB

First of all if it doesn't run good when it's cold and it runs good when it's warmed up it's likely just your choke not working correctly? But if you're going to go different carburetor and different manifold and don't need any kind of crazy performance then yes I factory manifold 4 Barrel small-block of any vintage would be just fine. A go to carburetor for anyone in this 4 Barrel relm is definitely an Edelbrock 1406 With an electric choke.
I gave poor information. Its not the choke and still dies at stops signs on occasion when running "good". Its defiantly the carb. It runs fine at wide open, but idles poorly. The way I get it to stay started is to pump the gas twice when I take off. I drove it across the state without too much problems though.