[THEFERMANATOR]

What had you been doing with the engine prior to pulling these? If idling and no running above 1500-2000 then #3 concerns me the most followed by #2. A looper should be almost black and slightly wet at the plugs from idling, and burn a brown color when running along. How many hours were on them? The whiteish on #3 would concern me as that is signs of a lean looper. And a lean looper will run like a scalded dog, but not for long. Run the champions and check them after a few mid range runs. Also try running her at 4500 for about a minute and shut her off, then go back and pull the plugs and check em. Cruising and top end is where jetting is CRUCIAL on a looper, idle is hard to judge as a looper is pretty ineffecient below 2500 or so RPM's. The older engines actually do better at idle, but from cruise on up a looper is the winner.