Executive order

D-321

Design Development & Manufacture (DDMI)

Vehicle applications

No vehicle applications were preserved for this order.

Part records

Part numberModel/specificationModificationRemarks
300hp1986-1993 Ford Mustang 5.0L V8 gasoline enginesRelocation of air injection hoses. Retard ignition timing from 10 degrees BTDC to 5 degrees BTDC. Install one -way check valve between PCV and inlet manifold.
375hp1986-1993 Ford Mustang 5.0L V8 gasoline engines