This is a simple Carbuertor adapter. It must be made to compensate for the slant you'll find on the manifold so your carburetor will sit level. This is a fairly easy item to make. If you don't feel like you can, then for a few bucks you can have a machine shop make one for you. Should not be a very costly item. Just be sure you get the Carburetor you want to use first so your adapter can be made to fit the manifold as well as the carb.