Hey folks - I bought a set of used IMCO (or IMCO-like) exhaust manifolds & pipes for my BBC. I have two questions for those in the know:
1) There are plugs at the bottom of each exhaust port runner. I've seen these used as water feed ports, and I've seen them plugged up, as on mine. Certainly you have to use them to drain the manifolds for winterizing. Is it preferable (or necessary) to use these ports as the water feed ports, as opposed to feeding the manifold from the end via the large pipe port? Seems like you won't get much (or any) water flow to the entrance section of the runners if you were end-feeding the water.
2) There are two slots along the walls at the manifold exit, where the tailpipes bolt on. I'm guessing that these are for a gas flow divider. Any reason(s) not to have the dividers in there? Mine don't have the dividers.
TIA - Matt
