I have an 86 4000q that I race in SCCA Solo II stock class. My question is: What is the largest size wheel offered on the 4000? The rules state I can legally use any size that was ever offered on the car. Also, what size tires would you recommend for this wheel? I have the stock alloys...14 inchers. Thanks for your help, Steven Verona 2 wins in 2 races so far :-)