Hey i started this in another thread but I thought it might be better answered in a new one. Does anyone know if the carbs from the early 1960's will interchange with the later models. I know they went from a heated water style choke to an electric one in '64 I think. Most people I talked to say they don't have much luck getting the headed water models to work. I'd like to go to a later model carb in the same hp to get that new style choke. What would be involved?