Well looks like you will need a dot tire to run that other class. Best bet would probably be a dot slick. Being successful with dr's requires a lot of work. The quickest car in ths (sean) last year had dr's. Running a boost controller like an ams500/1000 really helps out a lot. Problem is that with the co2 lines and tank and everything else you are going to have to spend $750+ at least.
they are the drag radials they are the 16inch 255-60. they have several street miles on them aswell.
I'm still using the stone aged swing valve and 2 stock solonoids and a BSTC controller with no feed back/loop control