I used this kit on my 74 formula. I had to buy head pipes as I used stock manifolds. It fit well and didn't interfere with any of the (stock) suspension. It does take some time to tweak it up into the body. I also used the band clamp type connectors.
Nice sound to it but not overly obnoxious!
https://www.jegs.com/i/Dynomax/289/89021/10002/-1
Good read on a Camaro forum about the exhaust kit.
http://nastyz28.com/threads/the-big-...-today.111795/