[Silverback51]

Thanks for the input everyone. I'm just going to go with some new rear tires and get a small air compressor.

I run 20-22 PSI in the front and 18-20 PSI in the rear. If you look on the Roger Kraus site, they recommend 20 PSI front and rear for racing. And generally racing carries a little more pressure so the side walls do not roll under during cornering.

In regard to DOT approval, bias ply tires can be DOT approved. The reason the Billboard are not is the side wall and tread carcass is very thin since it's a race tire. Less heat build up that way, but they also do not react well to pot holes and other items that we may hit on the highway.

Thanks again everyone.