Thanks GIZ - I am gonna give that a try. It seems as though whatever the problem is that it would affect the running of the engine regardless of orientation of the engine (upright vs inverted). Also it just occured to me that I somewhat mislead things in my first post as the engine is actually mounted inverted on the plane so in reality it leans out when the ENGINE is upright (the plane being inverted). I will let you all know when I get the carb rebuilt and tested. Thanks
Sonny