As for the left (Driver Side) exhaust manifold for the 1967 Barracuda 383, it was designed by Arlen Vanke.
Casting #2899002 (1967 Only)
I have a 1967 GTS 383 Dart. I have this manifold, but is it correct for the dart? Or just the Barracuda? I have seen several websites which say it is correct for the Barracuda. But I've seen no information on what part number the Dart had. I would assume they are the same? Thanks