Hi... I'm the proud new owner of a '59 Viking C60 with a 261 and a Rochester single barrel carb. The air cleaner that was in it when I bought it was a farm-fitted oversized John Deere job. I tried to replace it with an oil-bath cleaner, but it doesn't fit - the carb has a wider, shallower opening with a flange for the gasket, and a center stud for a shallow air cleaner. What should I look for to fit this carb?