Yes sorry DR-31 in 17x9, it was getting late when I typed that. I'm thinking either 17x9 +38 with 255x40s or 17x8 +47 / +35 with 245s.
In regards to the autox, I'm run BSP against corvettes and Porsches with slicks. Looking for all the help I can get without going slicks myself. Also, in order to not get too wheels crazy (this setup will be my fourth set for the car) I'd like to get something I can drive to the event, race, and then drive home.
With all that said, 255 will likely be too much tire/wheel and result in rubbing?