I have a 1956 car 235 in my 1593 3100. The intake manifold casting # is 3836922 and head casting # is 3836848. I want to switch the intake to one with the mounting tab for the horn. I see one on e bay with casting # 3835590, seller not sure if for a 235 or 216. Do you think they are interchangeable? And are the gaskets for the intake/exhaust seperate or one piece. I know I'm going in way too deep for just a horn bracket but I can't help myself!!! Thanks, Paul
