After reading what appears to be BenBB's webpage on jetting it looks like im going to be increasing the mains anywhere fom 5-7 sizes over the stock 200s. I picked up a set of 250s, 260s and 280s (the dealer did not have any 270s at this time). The guy at the parts counter said that he thought it was alot for my mods (filter and removed snorkle) and that when they pipe a Banshee they only increase 1 or 2 main sizes. So between those, the new filter and most likely a removed snorkle hopefully I'll be able to get her jetted correctly.