Thanks for all the great replies. I looked this thing over pretty good and it is nice and straight with no fin damage or any damage at all. The cores inside just have a little calcium buildup and no rust. It has never overheated on me. I guess I will get it rodded afterall as it does seam like a good build quality. Thanks for all the help guys.

87 Dodge Raider M/T 2.6L, Clearwater Head, Pacesetter Header, Weber Carb, Still working on it!