Pre-1954 235 truck engine manifolds also had the "tab" for mounting the horn on the intake manifold (I am not sure about passenger car manifolds).
That’s good to know, My 50 has a later 54 car 235 but still using the 216 manifold. Some point I want to get a 235 manifold, good to know I can keep the horn location.
Thank for the clarification and Happy B day
