I am frustrated and out of ideas. I hope the brain trust here might be able to help. After 8.5 years without flying after I sold my M20C, I bought a 1983 M20J. The plane has 5700 hours tt and about 600 since factory overhaul on a A3B6 engine in 2012. The previous owner replaced the right magneto with an EIS-41000 electronic ignition when the engine was overhauled.  I rolled the pre-purchase into an annual at Top Gun Aviation in Stockton and hired Don Kaye to get me current and safe.  Af