New Guy From STL, MO - Picking up a '74 Dart Swinger

I have done some searching and can't find an exact answer... Does anyone know what width wheel would have come with this car from the factory and the factory tire size? I know that it has 14" SBP steel wheels with hub-caps. I need to get tires for it before I go to pick it up and am unsure of what to buy. Thanks in advance.