I bit the bullet and bought a set of Sanderson FC4 headers I had tried the Patriot for 351c but they would not clear the steering box Even on the Sandersons , I had to dimple the #8 tube a bit to get them to clear. They came with a nicely angled collector adapter which will greatly help the install and head pipe routing. Originally, I was using exhaust manifold which were of Mustang type origin. Torino left side cast manifold would not work. Thank for all the help ! BP