I run 'em too. 15x6 Draglites, backspace was 3½". For the last little while I've ran a 235/60 on there but soon going to change them out for a tire that's a little smaller. That tire is just borderline too big for that wheel. Even with those on the front though they look like skinny's with 15x10's out back with 275/60's. I would like to try and find a 195/75 or a 205/75 for the front. That would be a better fit.
6" Telstars w/ 3.5" BS here. Running 215/60/15's. Was going to get 215/65's, but I couldn't find 275/50's for the back. I bought 265/50's, and needed something up front that matched the diameter of the rears....