I can't figure this thing out. It just starts hard. Everything is spot on (ignition timing, carb, intake, cam's timed, adjusted accelerator pump, wire continuity, new spark plugs, valves set . . . etc) Now I removed the magneto(sent it to my magneto guy to check it out) and added a distributor(timer), battery and coil, and it acts the same. I need to get it running and take it for a good ride around the neighborhood, maybe some slow speed backroads - get some carbon built up . . . that always helps it seems. I run 8.5 std compression, 4 1/2" stroke, new Super E, Andrews AB, and have tried 3 different types of spark plugs. Starts best cold, enrichener up, couple shots of fuel, throttle closed, timing full advanced. It takes about 5-10 kicks. After it runs to warm up - then I can't get it to start. Valves aren't tight, has spark, has fuel, had the timing every which way . . . Fart. I hate to start changing "big stuff" . . . since it should start and run fairly decent with about any combination, especially this combination. Hey, at least it looks kinda cool?! Best thing is just keep checking things, and not get too excited. Maybe I should ship this out to Kerry in Placerville? He knows how to make a panhead run . . .