Exhaust Manifolds

Jeep manifolds? I don't think that Jeep manifolds will fit a sbm. And the only Jeep that I know of that has a mopar V/8 is the 4.7 and from what I've read those won't work on a sbm either. If I'm wrong here and I very well could be, what year Jeep manifolds fit a sbm? And do both manifolds fit? The whole idea of this post is what if any truck exhaust manifolds or car for that matter flow the best, this idea was for a budget exhaust system that would help over all performance and not break the bank account. I've seen Doug's headers on a dart sport but they are like $900. If I can get the duster that I'm going to look at it already has headers, the other one doesn't have headers and I was just looking for some better flowing exhaust manifolds. What would be good mufflers to run?
Well pardon me for saying Jeep. Many Magnum manifolds will fit. Some may work. Others not. You need to do some reading. Like I said. There are a lot of threads in the exhaust forum about the subject.