I swapped my 68 GTS factory air over to 134a. I simply evacuated the system, changed fittings, added 134a oil, vacuumed pump the system. Added refrigerant and system has worked great for the past 4 years. I must admit that I rarely drive the car.
Thanks folks for your thoughts and info. After reading your posts, I figured I better check out my old battery first. It showed 16 volts. (huh?) I turned on my headlamps for an hour and ate dinner. Checked and the battery still showed 15.2 volts. Checked my battery tender and it showed...
My factory original car started having problems with gas/temp gauges and lights blowing. Found the charging system was running 16.5 volts.
I replaced the original Delco Remy mechanical voltage regulator with a Wells VR 706. Voltage started out at 14.8 with new regulator and slowly climbed...