70. TIRES: The tire must be a “Legends Edition†205/60R13
BFGoodrich T/A Comp HR4. Tires may not be soaked,
softened, siped (razor cuts), grooved or recapped. The raised
white letters of the BFGoodrich Tires logo must face towards
the outside of the car and be visible at all times.
You might also check with your local tire dealer and see if they can get these tires for you at a reasonable cost.
While your checking that out, might be a good opportunity to ask about sponsorship.
Steve