Proform Billet Aluminum Adjustable Metering Block - Purple Anodized - Holley 4150 1950792 The large bore KYB MonoMax

The large bore KYB MonoMax provides the additional stability that heavier

Designed for:

1964-1980 Oldsmobile Cutlass

Eliminates the Factory Resonator

Proform Billet Aluminum Adjustable Metering Block - Purple Anodized - Holley 4150 1950792 The large bore KYB MonoMaxFurther enhance the performance of your PROFORM high flow main body with billet metering blocks. Machined from solid aluminum, virtually eliminates porosity problems, and will not warp. Features changeable idle feed restriction with additional upgrades available for racing applications. May not be legal for sale or use in California or on many pollution controlled vehicles. PROFORM invites racers to experience the strength, innovation, and power