Engine Compatibility: Chevy Small Block V8 262-400 Cubic Inch Basic Operating RPM - Low: Idle Basic Operating RPM - High: 5500 Carburetor Count: 4 Barrel Type: Dual Plane Fuel Delivery Type: Carbureted Flange Type: Square Bore Port Shape: Square EGR: Non-EGR Finish: Natural Color: Silver Material: Aluminum Includes Fuel Rail: No