Jack,
I'm the guy that reproduces the manifold you see in the picture. Shoebox Ford is a dealer for me. I have produced these manifolds for quite a few years and recently I changed the tooling to produce a heavier wall so I could produce it in aluminum also. I also offer it with ceramic coating in either cast iron or aluminum for the guys that want to dress up their engine. These manifolds are a copy of what Douglas Foundry made for Ford for Police cars to give them increased horsepower. If you want any more information you can contact me at
[email protected] Have a great weekend.