I have looked and looked. Found some information on 14", but not alot on the 15". I would like to put disc on all 4 corners. I would like the best braking power possible. Please give your input.

I am running the 15X7 FW coded ralley wheels in the front of my 68 with stock 69 disc brake hardware and running 15X8 aftermarket ralleys in the back running Trans/am seville style calipers and rotors with no problems or clearance issues.

Give Frank at Prodigy (site sponsor) a call http://www.camaros.net/forums/showthread.php?t=150333 . It's a really good deal for a full setup.