64 Valiant charging and lighting/gauge issues

Thank you for the info.

The amp gauge goes from the center to the right. When it does this, everything flickers...the back ground in the stereo, the lights, etc..

I had no idea there was a regulator just for the gauges. I looked it up and it claims that it drops it to 6v for dimming the gauges. Does that sound right?

I did the headlight relay/wiring upgrade. That was a nice improvement. The taillights work and the turn signals but the flasher is kinda weak. I will check the connections on the bulbs for gauges.