All depends on tire you use. I usually assume ax/track means people are using stiffer sidewall tires. It's not a stretch to do 285 performance tire in front on 9.5. Our cars are very heavy in front and can use grip. Honestly responsiveness on 295 Hoosier on 9.5 is excellent. Don't think you'd see top CStock solo 370z on 295 up front if a 265 was better.
I have run 275 front and 285 rear setup and was just not enough tire for ax with my 325 WHP NA car and when I went to 478 WHP with supercharger I'd put the skinny setup on if I just wanted to drift a lot.
If one is looking at street tire like bfg rival or Dirennzia I'd go with at minimum 285 rear 275 front. Ideally 295 rear and 285 front with streets.
With Hoosiers you can get away with stuffing big tire on smaller wheel without losing too much responsiveness so you can go a little bigger. 315r/295 f.
Here is my car on 285 front and 295 rears on 9.5 and 10.5 wheels. Very little float.
