I just happen to remember back in high school when the Johnson boy (new Army draftee) visited home on leave with a brand new red 1962 2-door hardtop Ford Galaxie. It was in my Dad's shop for something and Dad was showing me, I think a 390, the internals of the dual point distributor. So I'm trying to think how that works with two point sets and the purpose. I could understand if the distributor were built with an internal gear reduction so the the point cam ran at half speed to stop point flutter at high rpm. Can one of you gear heads explain?