looked a little more worn then mine. I did mine at 2 gallons. also I am using byrons gen2prodriver30%. I like it, but think my run times have gone down. even after leaning the needles. It definitely tunes easy -good power lower temps. Takes a while longer for the engine to warm up with the byrons. I am going to finish out the 2 gallons then I may go back to my sidewinder 30%. that seamed to be all around good for me. did not need to lean anything out to far,good mileage and power. was going to try torco, but have read that you need to really lean it out for good results. I may change my mind and stay with byrons. I would like to try the massive mods nitro, but god knows what it would cost to ship to me. also I see on your head that it is black. are you running a hot plug? os-p3. or to rich or is that how your fuel burns? All of my engines are a beautiful light brown. Both head and plug.