Kurt -- where are you? Your posts sort of implies you're in the western part of the US - but giving us a better idea will let us know whom we might recommend.
In the meantime, we can highly recommend Nate Jones Tire Company in the Los Angeles, CA area. He's a top-notch vendor of racing tires for both cars and bikes, and does shave tires regularly on his own machine. You can find contact information in the SCTA rulebook -- or probably online, too. He often is at events here at Bonneville, but I haven't seen him so far this week. Whatever -- get in touch with Nate. Tell him that you got sent to him by landracing.com and Seldom Seen Slim. That'll probably raise your prices by about 30%, but what the heck -- who said racing is cheap?