Thanks for the reply. Yes I had the rotolocks set correctly and it is/was a R12 system. I believe the dye charge problem is on me that I added to much after not seeing any results. Anyway, I know head gaskets are available and I may take crack at replacing it just for the experience. I probably end ...

I have a1966 Ford with the Name Plate as follows: FORD No. Y240178 G PT. C35A-2875-B R-12 036 I did the "magnet test" and the case seems to be aluminum, but the head bolts are steel. I'm trying to bring the system back to life but it will not hold a vacuum. I did all the basic tests for fi...