* Year and Model: Ford F-350s have been produced for many years with different engines (gasoline and diesel, various displacements and configurations). Timing specifications vary significantly between these engines.
* Engine Type: Gasoline engines and diesel engines have very different ignition/injection timing requirements.
* Engine Modifications: Modifications like turbocharging, supercharging, or aftermarket camshafts will drastically alter the optimal timing.
To find the correct timing for *your specific* Ford F-350 engine, you must consult your vehicle's owner's manual or a reputable repair manual specific to your year, make, model, and engine. These manuals will provide the manufacturer's recommended timing specifications. Improper timing can cause serious engine damage.
Trying to determine the timing without this information is dangerous and could result in engine damage. If you're unsure, it's best to seek the assistance of a qualified mechanic.
