Yeah, best to do a search. But since I'm already here......
If they're for the track, get slicks. Or at least MT ET Streets, which is the same thing mostly. I'm not sure if you can get a 275 on the 8" rim but I'd go as wide as I can fit personally. Pull the quads and pound out the wheel wells.
If they're for the street but not bad weather go with the BFG D/R's they hook the hardest. If driveablility and length of life is important go with the Nitto D/R's.