You can get 295's to fit if you measure carefully and precisely nail the backspacing. My car has 295 BFG drag radials and these tires are wider than most out there the same designated size. The car is lowered with a good stance. Most of the time you need to massage the inner fender just a bit.
The car has rolled fender lips, and the stainless trim has been cut on the underside at about a 10-2 clocking making the trim flush with the rolled fenders as you look at it from the floor up. Therefore, you can assume 275's should be rather easy to fit IMO. You can see pics in the below thread.
https://lateral-g.net/forums/show...7653#post17653