Idle Mixture Screws

OE type of idle mixture screws. Matched by size and taper. There are few screws that can be matched by carburetor number. A longer taper screw can be beneficial in some cases as it gives a more sensitive adjustment. Most screws are threaded 10x32 except for the late models which may be metric. Use a thread pitch gauge to figure out your size. Most screws include the spring. Screws are sold per/each. You may need 2 for 2, or 4 barrel carburetors.