Since I've been unable to pin point why the AC won't hold vacuum I decided to pressurize the system.  I took the end of a bicycle tube and a not fitting with a barb end and used a piece of fuel line.  The barb fitting is the connection on the manifold and the tube end I connected my bicycle pump.  I have a high pressure bicycle pump for my road bike.  After I pressured the system I sprayed soapy water on every connection and even where the hoses were crimped.  I could find any leaks in the system. 

It worked great but I was loosing pressure on the high side.  After some testing with pressure and vacuum by closing and opening the low and high side ports I think I've narrowed it down to the quick disconnect is my issue.  The gauge set is over six years old and was from Harbor Freight.   Tomorrow I'll pull vacuum again and charge the system and hope it's all good.