Carburetor Adapter - Mounts Holley 2300 Series Carburetor to Small Rochester 2 Barrel Intake. Also Can Be Inverted to Mount Small Rochester Carburetor to Manifold with Holley 2300 Series Bolt Pattern.. Adapts Holley 2300 2-barrel bolt pattern of 5.160 inch x 3.460 inch to small Rochester 2-barrel bolt pattern of 3-1/4 inch x 1-7/8 inch.
