This is where my faith in the Source comes in. I basically have no idea the complete specs of what I need. All I know is that the mechanic told me the exhaust/muffler were still for a diesel, as was the radiator. From looking at the parts book, it looks like I need the main radiator, and the everything from the manifold back for the exhaust. Does that sound right?
Also, for the carb - 2 recommendations of the Edelbrock. Advice on getting the right one for my engine/driving conditions (occasional driving at first, nothing fancy for now)?