Aluminum Carburetor Adapters solve most mounting problems and also add horsepower. You know the problem you have when you get a new carburetor or want to swap around and the intake isn't just right? This 1/2 inch thick 4 bbl manifold adapter has tapered ports and it's even reversible! Large and medium base 1 11/16 port holley, AFB, or EDELBROCK 4 BBL carburetor to smaller base, 1 7/16 port 4 BBL 4bbl manifold. This adapter solves not only that problem but easily allows you to securely bolt the new one on. If you need the 2 gaskets,  studs and nut kit we'll just add an additional 6.00 to the price so be sure to LET US KNOW WITH YOUR PAYMENT. The adapter only is included in this listing.  Thanks for looking and don't forget to check out our e-bay store.