Believe it or not, that may be salvageable if there is no actual holes corroded thru. Bead blast the part, then use a product called labmetal on the corroded hose connections. Once dried, it gets very hard but can be sanded smooth. The area where the gasket is, just sand it down on a hard flat surface. If you have access to powder coating, get it done, the labmetal is designed to deal with the heat that the powder needs to melt at and cure at. I just rebuilt a set of carbs that the manifold pieces were nit much better. That is what I did and after powder coating, labmetal, it was built up and strong enough to use again for a long time.