This carb scoop has a polished aluminum casting with a washable & reusable air filter and a locking screw, Features timeless 1950's styling with a "frogmouth" shape, Will fit all Stromberg 97 style and Holley/Ford 94 style carbs with a 2-5/8" diameter neck, The air cleaner element simply slips over the end of the scoop for a simple installation, Designed to be compact enough for all multi-carb setups.