Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.375" Bore) 007030 Available in raw aluminum or

Available in raw aluminum or Black anodized for an added cost

This includes installation on your manifold

You may choose either annular or 90° nozzles

454-O intake manifold is designed for competition 396-502 big-block Chevy's with large oval-port heads (1975 & earlier)

Bore Size: 1

Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.375" Bore) 007030 Available in raw aluminum orWilson Manifolds Tapered Spacers feature a computer generated variable radius taper design that maximizes the airflow through the carburetor and enhances air fuel distribution for more horsepower. Part throttle performance and distribution are improved by redirecting the flow pattern created by the partially open throttle blades and gradually reducing the velocity of the air fuel mixture entering the plenum to allow for a smoother transition into each