How much tread is on your tires, which could be a problem??? I just purchased a set of RAZR 2 tires thanks to (ellison), and I can pop wheelies in dirt easy from 1st and 2nd gear. If you ride dirt and trails I advise you in purchasing a set of thoughs there great for traction. I have no porting either, just a cool head, 14/41 gearing, open box with prodesign kit, +4 timing, stock suspension, and stock carbs.