Used on billet blocks (Pkg. ).
Holley Cork Idle Mixture Screw Gaskets - Twin Pack.
Holley Steel Idle Mixture Screws With Serrated Heads & Cork Gaskets - Twin Pack.
Holley Cork Idle Mixture Screw Gaskets - Ten Pack.
Holley Steel Idle Mixture Screw With Large Serrated Head.
Holley 26-101; Holley Idle Mixture Screws, Large Head, 2pcs
Holley Model 4180 Idle Mixture Screws With O-Ring Gaskets. Set Of Four.
