273 four barrel intake

It is in fact a 1966-1967 273-4 barrel manifold for CAP emissions. (Clean Air Package) Basically California emissions. Mopar 1965, this won't work on your 273 if you have 1965 heads. You probably already know, but the intake bolts on the 64 and 65 273's are a different size and at a different angle. Send bad/red a PM. He may respond faster. toolmanmike