I have a 67 RS with guage package. New wiring harness, vintage air, electric cooling fan. Alpine Radio.
When driving, the air conditioner fluctuates on and off - slower and faster. It seems at higher RPMs, it blows normal. Sometimes I have a total power loss where the engine keeps running but the fan, radio, guages, AC, etc, all fail.
The TEMP guage fluctuates wildly sometimes. Sometimes when the key switch is on but not cranked, the AC will blow lightly even with the switch off