I too have 16's on my narrow body (stock flairs) 75 coupe. the fronts are 16 J6 rears are 16 J7. Tires are 205 all around (can't remember the profile). I did have to roll my drivers' side rear fender but other than that they work great. I am interested in fitting c2 cup wheels but I'm unsure about what will fit. I speculate that I may be able to fit 17X7's all around but my theory has yet to be proven. Anyone have any experience with this?
------------------