Holley 0-1850c 600 Cfm 4 Barrel Carburetor - This remanufactured carburetor has a secondary vacuum, a manual choke, and comes with power valve blowout protection. It also comes with side-hung floats, a single feed fuel inlet, and a needle and seat design to eliminate external float level adjustments. It is calibrated for street performance and comes with a dichromate finish.