Gary did organize a club and publish a newsletter based on the original factory publication. I don't recall exactly when he started this idea, but it was probably around 1990-1991. I have the issues, and I'll check the dates. I seem to remember that some engines had differences in the center to center for the carb mounting studs, thus the reason for two separate plates. He did a lot of experiments with adjusting base compression, and measured all of the changes with a vacuum gauge. He did market both hat pins and fender tips. He restored a good many engines for collectors and friends. I should have recorded some the conversation that I heard between Gary and Norman Burton! Two brilliant guys for sure!