I'd maybe start by making sure your clutch clickers are set to your specific elevation of riding ,there's sometimes a settings chart on the belt guard ,I've heard good things about UFO's in the carbs ,they work for some people and some people have seen no improvement ,maybe changing the stock drivers to extroverts will help ,you can run the track slightly looser so you are basically freeing up some of the engine's usable horsepower .hope this helps