So,I decided to try this

67Dart273 said
Well "most of em" did it LOL. Ford, I think AMC, and of course, Chrysler corp. I don't know who else. GM took a different approach.

First one I had went bad was the late fall of 67, I had a 60 Ford falcoon with the 85 hp 144 cid six, and a GLASS float bowl on the Holley 1bl.

I remember the first time i tried to get a voltage reading off one of these, I'm like WTF? It wont stay in one place! then I figured out why and its "you have to be kidding!" AND of course the voltage reg works the same way! why do my light flicker! LOL