A Body Shorty Stainless Headers
Unless you have money to burn and you want to squeeze every last horse out of your combo I would suggest some off the shelf inexpensive headers. I have seen many dyno tests on small block mopars and the horsepower gain was between 18 and 25 horsepower on headers vs stock exhaust manifolds. If you need to spend 6-800 bucks to feel that youv'e not let a single horse get away then go for it.