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.
Hey Rusty I remember people saying if I remember correctly that those units added too much advance for a setup that needed let's say over 10° initial without modification ? Just for a side note I run Mopar performance distributors and control units am a fan.