Probally custom made only now At one time(a long, long time ago 1970/71)Hooker made some small tube chassis headers for that applicatiion, diffently not a race header If he is going to use a stock front suspension with the torsion bars he will find out that the BB in the pre 1967 A bodys is a real chore I am building a 1965 Dart 270 two door hartop back half race car with the torsion bars removed and a A arm front suspension from CAP, it will have a set fo custom made race headers, probally 2.0 to 2 1/8 or 2 1/8 to 2 1/4 with four inch collectors for a big C.I. race motor with a set of B1-MC heads on a race Koleno wedge block I bought a bunch of the headers parts I'm going to use from Hedaman, one of thier 2.0, one 2 1/8 and one set of the 2 1/4 prebent mandrel bends and collectors and flanges for my car, that should make it easier on the guy who will make my headers for my car Tell your friend Good Luck from me