You need to decide what you want to spend. The headers that say they fit 1967 thru 1980 Camaros will fit but they hang low. If you want to just buy them one time, a quality ceramic coated header that is made for 67-69 Camaros will tuck up nice and fit perfectly but expect to spend well over $500.
Youtube videos I've made, a couple of Firstgens vids included.http://www.youtube.com/user/dons69camaro
“I have never in my life learned anything from any man who agreed with me.”
- Dudley Field Malone