TTI HEADERS HITTING

On my 70 Duster,
I have the TTI's and the schumacher mounts and had to do what woodie suggests. If I remember right, I had to shim the mounts @ 5/16". Made a U shaped shim out of flat stock steel.
I also bought mine bare and sent them out for a Good coating. I had heard some complaints on TTI's.

On TTI's web,{Hedder Installation} they tell you the height you should have from the center of the crank to the top of the K frame, and what centering measurements you should have because the engine is offset to the passenger's side. No matter what hedders you have, this is good info..
Hope this helps!
http://www.ttiexhaust.com/Category-ClassicHeaders/340-Step/Install Instructions TTi340A 4pgs.pdf