Thanks Greg58. I was runnin a 66jet with the needle full rich. Today I put a velocity stack with panty hose air filter on it. It wanted more fuel, so for s#!ts and giggles I gave it a 71 jet and dropped the needle to the middle position. Well, it really liked it. Got 40+ mph, more than once. I'm just havin too much fun! I measured the circumference of my tire and calibrated the speedo accordingly, so I believe it's pretty accurate.