Holley Model 4180 Idle Mixture Screws With O-Ring Gaskets. Set Of Four.
$43.99
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 FOUR screws & FOUR O-Ring gaskets.