I'm new to classic truck technology and I could use some help on a few issues. I'm having trouble charging my battery on 66F100 352. I installed new alternator, external voltage regulator and still have no charging. The voltmeter is a continuous 12 volts even when reved up. I did notice my dash alternator light slowly disappear with a high rev? My dash amp meter gauge shows very slightly less than 0 (-). Several friends have stated the one wire alternator is the way to go, since wires are original, very brittle. Not sure!!! Any help?