I have a 63k-10 292,I purchased an offenhauser dual carb manifold to install with two rochester 'b'type carbs.My problem is that the linkage sent with the manifold does not work.It appears that I need to install a new or different bell crank on some type of linkage arm. My request for information from the manifold provider lead to a sales pitch for different carbs and no linkage to hook them up either! I know some one has done this modification before and I would really like to hear from some one with the knowledge and know how.