ok this is my buddy's banshee. here's what he did he put in a hot rods stroker crank, bored .60, it's got k&n, jetting i'm pretty sure 240 main, boost bottle, fmf gnarly pipes bike works good other than it's lazy bottom end till the powerband cuts in. it starts perfect and idles amazing before he put the stroker crank in it worked good bottom end. just wondering if that the nature of a stroker crank?