nice car ,be intersting to see your conversion ,i just scored a mopar crate 406 for my 64 post today ,and gathering parts for my conversion ,just got to rebuild my pushbutton auto get some discs and i can get cracking ,,good luck with it
i am going to try to use the durango exhaust manifolds that are coming with the engine. i think that if i trim back the steering column outer housing it will clear. if not then i might take them to the local machine shop and have them do a little creative milling on the manifold mounting face. if that dont work then i know where i can get a set of 273 manifolds.