I just bought my first Banshee(04). It's setup for racing. It has FMF exhaust. It's bored .040. It has K&N Filters. Here is the problem.? When i'm at about 3500 RPM's and lower it doesn't have a lot of power but when it gets to about 3500 and above it wants to rip the handle bars out of my hands and leave me behind. What could i possibly do to get more bottom end power? I don't know anything about other performance parts in the motor but was told that they invested about $2000 in addons and it doesn't look like it's cosmetic.