A fair amount of the time they used basically "street elbows" from the factory to direct hot dog muffs or even slip together exhausts. Granted if you compare some of them with one you pick up today from a plumbing supply it make look a little thinner and not say china on it but for the most part thats what they were. Just remember if your going elaborate with a bunch of connections and long run you probably want to support it at a secondary point, the threads on the block are soft.
For a touch of class finish it off with a soup can muffler :thumbsup: