Hey guys, I bought a ‘72 Dart Custom a few months back with factory AC. The compressor was disconnected due to a severed wire, but I tapped the low side fill valve and some pressure came out so I ran a 12v jumper and the RV2 kicked right on.
Anyway, I used 1 can of Arctic Air System Conditioner/ leak sealant and 2 cans of their EnvoroSafe R12 refrigerant.. charged it to about 80lbs under load and replaced the damaged wiring.
AC blows Ice Cold.. smaller vents, but way colder than my modern Challenger R/T.
Don’t convert to R134a! This Envirosafe R12 kit with all three cans and a filler gauge was only $68 on Amazon.