Hi Steve -- I converted to a '66 dash which uses a shunt type ammeter. I am considering one of the high output one-wire alternators but no one seems how to wire the ammeter. So if I make that change I'll probably modifiy an old ammeter I have to operate as a volt meter. I think a volt meter is a better idea anyway. My dad's Chevy truck uses a volt meter rather than an ammeter. And in theory what's important is what's going back into the battery anyway. With a volt meter you can see that. I have had a bad regulator but a good alternator and wound up with a dry battery while the ameter showed normal.
...modified '65 convertible...
...modified '65 convertible...