This is a 4 barrel Quadrajet style carb fits many small and big block Chevrolet alike , comes with mounting gasket and extra jets and metering rods should  your application require rejetting , this is a new carb that has never been ran or had fuel put through it , clean ready for installation , check the pictures to make sure this will replace your current carb . and will install in  the same fashion as your old one . Thanks  Free Shipping