STREET PERFORMANCE CARBURETOR, 600 CFM -- 49-state legal; Not for sale or use in California; Cannot be shipped to California addresses; Four Barrel, Easy Bolt On Installation, Vacuum Secondarys, Power Valve Blow-Out Protection, Wet-Flow Tested And Calibrated For Excellent Street Drivability, Vacuum Secondary, Square Flange, Model 4160, Use Adapter Part Number 17-6 When Using A Square Flange Carburetor With A Spread Bore Manifold Series: Holley Street Performance Condition: New Emissions: 49-State Legal - no CA shipments Product Fit: Direct Fit Quantity Sold: Sold Individually Anticipated Ship Out Time: 1-2 Business Days Fuel Type: Gasoline Part Number: 0-80450