I have a 78 El Camino with a crate 350 in it. The passenger exhaust manifold that came with the car doesn't seem to be the stock one. It's a 2 bolt, but the exhaust kit that I bought doesn't seem to fit right, the angle is off some. I can't find a new one anywhere. I don't want to go the header route and the stainless downpipes are nice, I don't want to have a custom one made. Any suggestions?