Allstar Silver Anodized Billet Aluminum Fuel Regulator Mounting Bracket for 4150 Style Series Carburetor and Holley Regulator features a fuel regulator mounting bracket. It's designed to fit the 4150 style series carburetors using a holley regulator. It is constructed from quality billet aluminum and features a silver anodized finish. The hardware is included. It is backed by a 90-day limited factory warranty and sold individually.