I'm new to this and just want to get some advice from people who really know what's going on. I have a 04 banshee and I'm trying to get horse power out of it, beside's the Rocket Pipes,K&N filter, and 30mm cpk carbs my banshee is stock and I want to see what else I could do to it to go faster a buddy of mine got his head milled and he said it made a big difference I want to hear from other people that have more experiance with these motor's and see if I should get a after market head or have mine stock one work on. any help would be greatly appreciated.