Just an update on the Aluminum restoration for my Shelby intake manifold. I found a company call Wilson Manifolds here in Ft. Lauderdale. I believe they have a couple of other U.S. locations. They have a proprietary method of cleaning aluminum manifolds that return them to their OEM finish. They did a magnificent job!! Additionally, they can repair broken aluminum and when they are done, you cannot see where the brake was! Same cast aluminum finish and such! Unbelievable work!!