Anybody running 17" Cobra Bullit rims on a Duster

Awesome info here! How much wheel does anyone have on a 68 cuda / Mustang wheels ? A buddy has a set of 17x8's but I think I might go to 18s if they will fit. I'm using a 68 bigblock K frame, 73-up upca and disks, A-body 8-3/4 rear with Yukon axles, 3 inch studs all around for now. I have 15" draglites now but want more rim. I have a real issue with front wheel well clearance at the leading edge. (back spacing is all wrong for the fronts) rear tires are 275's and have about 1/2 " clearance to the spring.