Yup, the SCCA ruleset for B-Street limits me to stock 9" wide front, 10" wide rear wheels. Car would be awesome with wider wheels in front (and tires), but coilovers and adjustable shocks would also transform the car too. The the money pit deepens
Depending on how the rears continue to put down power, I may consider trying 285/35-19 tires in rear on stock wheels. Would effectively increase top speed in 2nd gear a bit too.
For now, I will continue to work with the 275mm square tire size, improve my driving!