OK, a few more facts. OS#A5 plug (recommended by manual). I do also run and have Mach7 15% fuel. I have the standard and recommended OS tuned pipe. I'm trying to run an APC 17x12 prop.

Running rich, lean her out??? 1.5 turns should not be THAT rich should it? It is running REALLY, REALLY bad. Not even close to actually running or being on the pipe. It's just banging along, barely, and spewing gas out the carb.