Owning a hot rod is like owning a boat........if you aren't a good mechanic when you get one, you will be much better after you own it for a while. Seems like there is always some issue to try to resolve.

My thoughts were the module too, and if you take yours to the auto parts store and tell them 70's-80's Chevy V8 and show them yours to compare, you might be able to find a match. Of course, if you get one of the store "experts" like they hire these days who only knows how to look up specific cars in the computer, you might be in trouble. We got one of those yesterday morning, trying to buy a slightly shorter v belt for my Son Dans rpu. I had to educate HIM about how the numbering system on v belts works because he was dragging every belt in the store out, just comparing length. After I showed him how the inches were in the part number he found the right one.

I have always thought modules in these GM distributors just go totally out with no warning like you got. Every one I have heard of failing worked one minute and then didn't work at all the next. But it is possible to have one fail and run crappy for a bit, then go, I guess. You might also check with a volt meter to see what kind of voltage you have coming into the module. Could be a bad ignition switch, wiring, ground, etc.

Don