Alright, so I picked up a spoiler for my 79 at a swap meet. I'm in the process of painting it (several coats with wet sanding between them), but i can tell im going to have problems mounting it. I looked online for templates bit i cant find them anywhere. If anyones ever had to bolt on a spoiler on a Camaro WITHOUT pre drilled holes, let me know if youve got any advice. Thanks everyone.

 

It's really a simple operation if you make your own template. Just take some butcher paper or brown paper and fit it to the bottom side of the pieces. Use masking tape to keep all the creases and folds from changing once you've formed it into place, then with a felt pen mark the edge of the paper from the top. Also tape around the holes to get a close fit, and precise mark.
Remove the patterns and situate them on the fenders and trunk, tape them in place and mark out the holes. Drill them about 5/16" to start, and test fit the pieces. If needed you can open them up to 3/8" for more adjustment.
Best to do all this before you finish the painting, so you wont get felt pen marks on your new paint!

 

I see that you got a great response, as usual, from 1971BB427, just as I have before...
Just thought I would tell you what I ended up doing when I put on my spoiler on a 75- the guy who did my body and paint work attached it so that it is "molded" into the body, without visible separation.
I will attach a picture, I think it looks pretty good.

 

Thanks for the replys! and I actually made my own template out of a big roll of blueprint paper before I posted this thread, I was just looking for tips. So BB427, I guess i was thinking on the right track! and yes, ive still got the primer coats on the pieces, so no harm was done.

And JGRAHAM, that looks freeking SWEET. I might consider doing some bondo work like that in the future; when I get it painted. But I must say, that looks very nice.

 

that looks sexy as hell man, might have to get myself something like that eventually lol