I am running fiberglass front fenders, hood, grill surround, and front valance panel on my '67. The fitment was pretty good on everything. I had to drill out the mounting holes and drill out the holes for headlight mounts/adjusters, but there were indentations in the fiberglass where I needed to make the holes. I did massage the door gap and cowl gap a bit. The upper surface (beside the hood) was slightly wavy but block sanding took care of that. They also had an indentation for the '69 side marker lights that I had to fill (for my '67). I'm very happy with them and people can't distinguish the difference from steel once installed. The ones I bought were not race fiberglass but they're still extremely light and sturdy.
http://www.showcars-bodyparts.com/barracud.html
