Carbon button in distributor cap broken off, melted

I have too. Those units are the same ones that Summit sells under their brand. I haven't used one, but they "appear" in the pictures to be decent. Let us know how it works out. Keep this in mind though, NO ONE and I mean NO ONE makes good electronice anymore.......that I know of. So, with that in mind, I'd keep a spare of everything.
Totally agree that why I use 30 yo parts in my rebuilds. The new stuff has way to high a fail rate for me. Now ECU's new or old are a crap shoot. Have not seen a new one I trust yet. I have a ecu tester and around 25% fail right out of the box.