First I must say that after understanding how the forum works and the tips I got from the boaters out there have proven to be very helpful. I was able to troubleshoot, replaced the points, replaced a head gasket. set the timing as humanly close as possible. My motor fired up and runs like a dream. My boat is averaging about 20-21 mph. I have another problem though. After about an hour of the motor running fantastic it starts to miss. A little fluctuation in firing, then a little loss of speed, and it eventually gets very rough and I lose the firing on one cylinder. Can anyone give me any input on what it may be? All I can guess is maybe the engine is overheating and throwing off the ignition. If this is correct, how can I rectify my engine eventually failing? I appreciate all input. Thanks. Phil
