Just ran it with the timing light. The static pointer is dead on the T mark at idle. When you rev it up timing advances to the left hand of the two timing marks. It strobe doesn't miss or anything when you start to rev through the bogs so I guess we can rule out an ignition issue.... That damn carb is clean as a whistle, float is set right. I haven't tried it with no main jet yet, but when you move up in jets from 100 (100 is what another person with the same motor and carb went with after he did the same cylinder conversion) to 125, the miss/bog remains the same however it begins to smoke a bit more. Pull the plug and its darker/sootier.