Optimize your engine's efficiency with the High Velocity Heads 1in. Super Sucker Aluminum Carburetor Spacer - 4150. Designed to boost airflow, this polished aluminum spacer is a perfect addition to your carburetor setup. Tailored for Square Bore carburetors, it facilitates optimal air and fuel mixture, enhancing your vehicle's performance. Perfect for automotive enthusiasts looking for a high-quality carburetor component. Measures 8.4 x 6.65 x 2.25 inches for easy compatibility.