Holley Model 4180 Idle Mixture Screws With O-Ring Gaskets - Twin Pack.
$24.99
Used on Holley/Mustang 4180 4 barrel carbs where idle mixture screws are attached to the base plate. Holley Brass Idle Mixture Screws & O-Ring Gaskets. You will receive TWO screws & TWO O-Ring gaskets.
