Why don't you start by putting a volt meter on the alternator and see whats going on there. Measure with the car off, with it idleing and s-l-o-w-l-y bring up the rpm's. It shouldn't go any higher than 14.4 volts.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
