You could change the wheels to e-flight micro wheels in 2" size. They still have some foam and give a little prop clearance. The biggest prop i can use is a 9". The APC 9x7.5 or 9x8 work I think i even tryed a 9x8.5?. This plane is as fast as i can handle. Lands like a dream- not fast at all, just takes along time to bleed the speed.
Found the wheels-2.5" from Dubro
http://www3.towerhobbies.com/cgi-bin...6&I=LXTDS7&P=K