The Edelbrock 1/2-inch divided wood-fiber spacer is designed for dual-plane intake manifolds to add carb-to-plenum distance while helping reduce heat transfer to the carburetor. Made from wood fiber laminate and 1/2" thick, the divided design helps manage airflow between manifold sections and can improve low-speed response and throttle behavior where thermal insulation is beneficial.
Edelbrock 1/2-Inch Divided Wood Spacer