Early A-body Header Manifesto
I'm running TTI's on my 65 Barracuda (360,11.5 bell and a 833) and they do fit like a very tight glove. They do seem to fit a bit tighter to the floor than the Dougs, This comparison was on a 66 Valiant (360 727). For the Barracuda I did buy the complete exhaust kit and was very happy with the fitment, but a big thing about the TTI's is they have to be used with an expensive mini Starter if you are using a 727 or 11.5 bell. And the TTI's are more money to begin with. Both cars had new Schumacher mounts in them.