Pro Tour guys. What tires r u runnin?

275/35/18 tires on 18 x 10 Rims with 6.5" back spacing using a stock width A-body 8 3/4 rear end, mini tubbed and inside wheel lip trimmed back. It's an extremely tight fit on the outside of 71' Dart. If I were to do it again I would narrow the rear axle 2" and go with a 5.5" back spacing on the wheels.