This Edelbrock open cloverleaf spacer adds 1" of plenum volume and carb‑to‑plenum floor distance for 4500 series cloverleaf manifolds. The aluminum spacer increases the space between the carburetor and plenum to influence airflow characteristics and is intended for use with Edelbrock 4500‑series cloverleaf carbs where additional plenum volume or clearance is desired.
Edelbrock 1-Inch 4500 Carb Spacer