What size tire for 18x9 rims??

Hey guys ,I need some help..I just picked up a set of chrome 18x9's and 18x10 bullit replica wheels , I need to find out what size tire can i fit on there and not have too many rubbing problems? any people with 18's on there fox stang list your setup. Oh By the way Im runnin Sn95 spindles and brakes on the front and ranger rear axles/drums in the back.

TTT anyone else know?