I looked into my exhaust manifold on my 1977 280Z and saw the inside chambers rusted/blown through. I'm thinking this may be why my exhaust sounds so uneven at the tail pipe while the engine purs like a kitten. My question is this; can I swap a 78 or 76 exhuast manifold into my 77 without any tweaking? One more thing, what adhesive should I use to glue my hatchback weather stripping down? Opinions welcomed!