Everywhere.
In the front I've cut out the inner fenders and rolled them, and welded on new steering limiters to the lower control arms to keep the tires off the frame and swaybar. Granted I run the B-body spindles so it changes things a bit compared to stock.
Out back the trim and wheel lips were gone when I bought the car. What was left was rolled tightly back into itself and stretched as much as possible using a fender roller. The frame is factory stock. I think the kids call it "hellaflush", we call it "hellarubber". LOL.
Hell, even with just 10s and 285s Scot had to rework his car with a fender roller to keep it from rubbing:
http://www.turbobuick.com/forums/2437539-post72.html
Fitting 11s (or 11.5, still not sure) and 315s isn't exactly the same challenge. To make an omelet you are going to have to break some eggs... I just happened to use a sledge hammer to do it.
Not to hijack but you wanna loan that roller?