It sounds as if you've got it running the way it was supposed to. Stronger spark than the standard magneto provides cannot increase the output power unless the original magneto was inadequate, which is unlikely. (Modern cars do have high energy ignition systems, but that is nothing to do with power output, it is to improve their ability to ignite lean mixtures at light throttle, which has emissions control advantages.) Sounds as if your original ignition system was sick - might have been dirty points, wrong point gap, weak capacitor, or high tension breakdown in the magneto secondary. Or, you might have replaced the spark plug at the same time as you replaced the ignition system, and the improvement was due to the better spark plug. Whatever it was, you have the right result now, and you had some fun getting there. If the new unit is any good it should be maintenance free, so you've shortened the list of things to worry about in future.
I'll close this thread. Remember, if any member wants to post to a closed thread, just PM a moderator.
