battery new alternator rebuilt new regulator . i will run 914 4 1970 all day . once i put on light radio it will not charge car will die . then i have to keep two battery one for back up and this stink ,tranny ground good firewall ground good . someone sad there is a way of turning up volts on alternator or regulator how ? and charging light on dash red light ? help

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Alternator System Troubleshooting

Sounds like it's only trickle charging and not fully charging your battery. This is indeed most commonly caused by a bad or poor ground between the engine and the chassis. I would check the resistance, and/or try adding another ground strap. There's no way to "turn up" the amps on the alternator unforuntely.

- Wayne