Since the cast iron was beyond any chance of welding, I took it to Terolab, a company that specializes in advanced surface engeneering technology. As far as I know they do special coatings for things like turbine blades and biomedical implants. Anyway, the people at Terolab were kind enough to squeeze the 'Cuda manifold in so that ugly crack was bonded up with some space age technology. I was promised it will be just as good as welded or even more durable. And once it's painted it will look the part again as well.