68 dart "Go Wing" and Front Air Damn???

CanadianGT said
there was a nice aluminum wing that was low and extended about a footoff the truck made in similar style to drag racing wings. I thought it was a really nice piece but I can't remember who sold it.

Try Ed Quay Race Cars at http://www.edquay.com/spoilers/index.html
They offer both trunk-lid width and full-body width rear wing spoilers for 67-69 Darts and other Mopars. Here's a couple of pics from their website:

EdQuay71Dart (Small).jpg