So the engine is not running real well, it's doing OK, but still feels a bit rough. We replaced the coil back when we were trying to get the engine started for the first time, but we got the cheapo replacement. We've replaced the replacement with a Pertronix III to get a bit more spark power, as well as match it better with the Pertronix electronic ignition.
This seems to have helped slightly, and we had to adjust the timing a bit again. It still seems like it's misfiring on one of the cylinders once in a while, every 3rd cycle or so? Not sure.