I don't think Accurate is making the the manifold with the welded on pipe anymore, at least I haven't seen any in a while. Years ago I sold several C-body HP driver side manifolds to Tom and was surprised when he told me what he was doing with them. That was back when you really didn't have many other options. If I were to build another big block A-body, I would probably use the headers from Schumacher. They fit and flow a bit better than manifolds.