If you want a quick and reliable bike you should go with Rudy Curtz (port magic in hesperia) he did my lt500 and he always has great info, and wont try to sell you something, he gives you what you want, granted its going to work. and to top it off he does not over charge. on my banshee I have fmf fattys, a milled head .020 taken off and had the cases matched to the ports on the cylinder. its a rocket for the little amount I have spent. I beat guys with t-5s, cool heads, and porting. Dont waste your money on boost bottles or reed spacers, they are more for top end and make it harder to ride in the dunes.