my 450 is piped/jetted, lid off proflow, amr cdi, and thats about it. +2 in front stock shocks. figured it would suffice a TT race. I just dont want to show up on a nearly stock bike and get stomped, but I imagine its a tighter course and like you said, more skill than hp. the rear is stock width, but I have some spacers i can make it +4 and another +1 with the hipers off the banshee. They have a shallower offset to the hub.
my banshee is loaded. 4mm passion 12port rz motor, 34mm carbs, rockets, -2 swinger, +3 arms in front +4 axle, semi squated. basically, had I a stablizer in front it be a great flattrack quad. Very stable on high speed turns. Prob a bit much power for a tight track TT race. My rear wheels are hipers, but Im pretty sure they are 9".
Ive pretty much made up my mind to come up on the 8th. If I get the banshee up to par in time, I want to put it out there for sure as well on the 22nd.