manifolds for my 318

You could always try to put some Magnum exhaust manifold on (better than 360 manifold's). If you search there was someone that had a ton of pics and how's to put them in an A body. Or do what Sggduster says and go with some cheap headers, the only problem with them is crapy ground clearence, and if you have lots of bucks go with TTI headers. These don't have the ground clearence issues like most A body headers.
Any one else?