Adjustable Restrictor Plate

For use with Holley 4150 series carburetors, 1″ tall, shutter-style plate fits between carburetor and intake manifold, enabling horsepower and torque to be custom-tailored to track conditions. Billet aluminum plate is 1″ tall and can be adjusted from 1.75″ down to 1.00″.

Willy’s Adjustable Carburetor Spacer – Restrictor Plate – Adjustable – 1 in Thick – 4 Hole – Square Bore – Aluminum – Black Anodized – Sold as Each – Brand: Willy’s Carb – Part Number: WCD8850

Specifications

Brand Willy’s Carb Part Number WCD8850 Thickness 1 in 4-Hole/Open 4-Hole Carburetor Mounting Flange Square Bore Restrictor Plate Yes Restrictor Adjustable Yes Restrictor Plate Inserts Included No Gaskets Included No Hardware Included No Material Aluminum Color Black Finish Anodized Quantity Each