Sounds like the fuel system is still not operating correctly. I would start with having the fuel injectors cleaned and tested and replace the seals....
Do you still use the orifice tube or do you change it to something else like the VOV? As for the compressor, it is basically the same as the R-12 one...
Just what exactly is a "Proper" conversion? What is done besides changing the refrigerant and oil, and putting the adapters on the service valves? In...