I have an easy solution...don't put it on. I guess I am biased but I think the Firebirds look good with the trunk lettering and no spoiler. If anything put a '69 T/A spoiler on. I know all of that may be worthless so I'll try to help. I get a little carried away at times. Check out some Camaro sites. I guess Ricks First Gen is a good one:(http://www.firstgen.com/). Also, see if you can find someone that has a Fisher Body manual for 67 - 68 Camaros. That may have a diagram. Also check out the online car show on this site because I am sure there are several birds with Camaro spoilers on them.