Ken, I try to keep the front end relatively light, about 1-2" higher than the rear (static). Set your rear shock fast on compression, slow on rebound. Crank the preload up on the right front (remember you won't have a lot of weight on it anyway. Set the tires with a little 10-20mm toe out. When your hitting the corners, get your right foot back and out on the nerf bar and put your weight out there. We don't run a lot of screws in our front tires, I prefer sliding it through the corners and keeping the RPMs up rather than "driving" it through the corners. jmho.
As far as the other quads on the ice, I think they were all 450s. Can Am, Honda and Yamaha. The two quads in the back row were in the class higher than the quads in the front row. All the quads in the front row were running AMA legal tires/screws.
It's a cool quad, but not a lot of Blaster left on it. +5,+1 SMS A-arms, Custom +4 swinger, Banshee +4 Axle, Fasst Flexx bars (to tame some of the vibration), Major rework on the frame to fit the engine, probably a more that I can't think about right now. My profile pic shows my son on it last year when we were still running the stroked big block blaster motor. he was racing youth class then and they complained about him moving up to the pro class. So, I move him up and they're complaining again after the first race that he needs to move up to the outlaw class.