A/C amount Freon - 3745

[donaldlett]

I have a 157 continental Markll with factory air. Can anyone tell me the number of ounces of R-12 it holds . Most cars today take 2 12 oz cans of r-134. I have installed 4 cans of R-12 and it gets cold .The gags show the low side pressure 30 the high side 200 in 95 degree heat here in Kansas. The problem it takes too long to get cold ,so I feel I do not have enough R-12 .and do not want to overcharge. can anybody give me that information and any other advice I should know.

This is the first time I have sent in a thresd,i guess that is the right terminology.

Thanks Donald F Lett