Check the listing for details. Holley Carburetor 2 Inch Spacer Lightweight Tapered 4150 USA. Condition: New. Listed at 140.20 USD. Product Description Pocketed for lightweight performance 2 Inch tapered blend carburetor spacer for 4150 style intake manifolds. - Fits all applications with 4150 style intake manifolds and carburetors - Dyno tested to improve horsepower, torque, and throttle response - Evenly distributes air and fuel - Increases air speed - 2 inches thick for applications where hood clearance takes a back seat to performance - CNC machined from 6061-T6 billet aluminum - Black anodized for extended life and a noticeable appearance - Longer carburetor studs and a extra carburetor gasket are required and can be purchased from us separately - Great for race cars, muscle cars , showcars, boats, 4x4's anything fast! Made in U.S.A. Follow us on instagram @ Reapercustoms805