If you research this site, you'll find answers to your questions.
In short there are draw backs to the Big Letter Goodyears. Race rubber, heat cycle issues, warming them up, non DOT, bias ply, etc.
BF Goodrich are junk for performance and balance
The new Avons are awesome! They come in the right sizes and are DOT approved, are V speed rated, but will probably only last 6000 to 8000 miles, as they are very soft and carry a "teadwear" of 80. They are pricey too.
Contact Roger Kraus Racing....
http://www.rogerkrausracing.com/