With the boondocker there is absolutely no reason to have carbs anymore as you can make the adjustments to the EFI far easier then a carb. They are just as responsive and have a lighter throttle pull. Go with a 2.5 degree timing key, Vforce3 reeds, BMP Pipe Mod, and a boondocker. Ditch all the sound deadening material to loose some weight. If you have a 05 or 06 add a HRP relocaton bracket and have your shocks revalved I had mine done by ShockTech and they did a excellent job. The Oles 3" riser puts the bars at a perfect height. Hope that helps.