Has anybody out there?

I know this is an old thread but it came up when I did a search. I can get the templates to cut the quarters like the 1968 Super Stock A-bodies, but then what? Do I need to "roll" the freshly cut lip under? Do I leave it alone and just prime and paint it? If I need to "roll" it, do the templates take this into account or do I need to leave extra metal for that? Never seen a SS car in person and the pictures aren't clear enough. Thanks to all for any help.