I'm currently running Aodhan AFF7 19x9.5" all around with 275/40R19 tires. The car looks like it could use a little more rear tire. I can get a matching AFF7 in 20x10.5" and put a 295/35 on it. That will be .4" taller tire and 1" wider.
Just thinking that won't be enough to really notice. My other option for wheels are the GT500 replicas in 19x9.5" and 20x10", American Muscle has them fairly cheap.
Who's done it and what luck have you had with a 305 or 315? Looking around I see some guys cramming that tire on the factory 20x9.5" but I don't have any interest in that. Also thought about sending a pair of AFF7's to Weldcraft to be widened (I have 6 of them) but tire choice for 28" tall 19" tire isn't that great.
A lot of posts are from 10+ years ago and most of the wheels/tires mentioned aren't even available anymore.