Description: Holley Idle Mixture Screw Caps
Model: Mustang, Shelby, Cougar, Ford
Model Options: All
Engine: BOSS 302, 428 CJ, 428 S/CJ, BOSS 429
Transmission Type: All
Accuracy Rating: 10
Best Repro Available: YES
Perfect copy of the factory Ford Holley carburetor idle mixture screw caps . Most were never put back on once removed so its rare to see originals.