Carb for my 360

I have a stock 360 engine with the wrong carb on it at the moment. It's running HOT with a Champion 3 core radiator and I'm thinking I am running way too lean and/or perhaps too small cfm carb on it. So my question is how do I go about matching a carb to my engine. The engine has an Edelbrock performer 4bbl intake on it (don't know if that's good or bad for it either). In any case, I need to get steered in the right direction to get a working carb/intake combination. The car is a 67 Barracuda 360/904. I don't plan to race it, just mild street use.