Features: Heavy duty grey metal construction Aftermarket high performance 2-Barrel carburetor Efficiently improve Throttle response,maintain near stock Fuel mileage Add 5~10% horsepower for better Engine performance Mounting gasket & seal included Instructions: not included Specification: Material: Metal Part Number: 2100,A800 Venturi Size: 1.14inch,300CFM Weight: about 2.75kg Package size: 28.5*20.5*17cm Fitment: .