Description: Holley 4150 Vacuum Fitting
Model: Mustang, Shelby, Cougar, Ford, Mercury
Model Options: All
Engine: BOSS 302, 428 CJ, 428 SCJ, BOSS 429
Transmission Type: All
Factory: San Jose, Dearborn, Metuchen
Date Code: None
Accuracy Rating: 10
Best Repro Available: YES
This is a modern reproduction of the brass vacuum elbow thats correct for all factory installed Holley 4150 735 and 780 CFM carburetors.
Original fitting had a tiny die stamped Weatherhead logo on one side of the square section (see picture). This reproduction does not have this stamp.
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