Does anyone know of a shop that welds cast iron? The manifold on my 302 is burnt through just below the carburetor,runs fine just loud. This is a old fire truck and I think it sat still pumping water and it got hotter then it would moving down the road .I have welded cast, some times it comes out ok other times not so. There for I,am looking for a company that does it for a living.Any one have any experience on this. Dave