My 1969 Plymouth Barracuda’s alternator was no good. I got a new one and installed it. The voltage was reading almost 18 at a high idle, and changed significantly with throttle changes. I replaced the voltage regulator and now the voltage is steady, but it’s sitting at around 15.5 volts, which most sources are saying that’s too high. The battery is good, I had it tested last week. Any suggestions/ideas?
Voltage Regulator: R280