Thanks for all the info, I found some R12 cans on ebay may need a couple of more. I will evacuate first and see how long it holds a vacuum if good for 12 hrs or so will fill with R12 and it should be good to go, I hope
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70 Formula 400
69 Grand Prix 428
70 Buick GS 455 Convertible
66 Oldsmobile Toronado
Always looking for more