MP Dizzy?

Exactly right. That's all they were. A stock Mopar electronic unit with a set of springs. People don't realize how good the stock units were. The advance kit was all they needed to be an HP unit. Yet people run them down and talk about how "great" MSD is. BAH humbug.
Wrong! They only removed the big spring in it. Small spring is the factory one as any other dist. That is a street dist that came in their conversion kit to change from points or a lean burn. Kim