Nick,
I have some jetting experience with sleds, but none with a banshee. I am in Michigan so I don't think elevation really plays into the equation. I am running Klotz super techniplate at 40:1. The plugs look like it is running a tad rich, but not too bad. I really have not ridden it very much, but it isn't toping out in 6th. It tends to bog at wide open, but cleans up at 3/4 throttle. In the first 5 gears it screams, until 6th. The top end is fresh, so it "should" run fairly well. I'll check the FAQ. Thanks for the info