I just got back from my neighborhood auto supply store, lookin for a rebuild kit for my carter 4131 (1966 383 mopar). The counter guy recomended a edelbrock kit. I know that eddys and carters are similar, but do things like rebuild kits interchange? He said one is the same as the other. I am skeptical. This is something that I don't want to screw up. If they are all the same, what is the point of having so many different model #s of carbs?