First off I am new to 2 strokes, just got a 99 banshee a month ago. It was bone stock minus a boost bottle, tors removed and the air box is gone. In it's place is a toomey air filter with an outerwears cover. Stock cylinders. Since then i have swapped the stock exhaust and replaced it with fmf fatty golds, powercore 2's..i also installed boyesen power reeds. I changed the main jet from 200 to 260. Air screw 2 turns out. I ride trails and live in Cincinnati, and have no idea what the elevation is. I haven't ridden it much but it starts on the 3rd kick, idles fine and smokes a little. My questions are I was told to run Klotz r 50 with premium gas at 40:1. Is this what would be recommended for my set up? Also I have read that I should lose the boost bottle..what does it do and should i keep it on, it runs fine with it. Brand new to this awesome site and would appreciate any info or input..thanks guys