There isn't a single "wiring spec" for a Ford 302. The wiring diagram depends heavily on the year of manufacture, the specific vehicle it was installed in, and any modifications that have been made. The ignition system itself could be points-based, electronic ignition, or even a modern EFI system, each with vastly different wiring.
To get the correct wiring diagram, you need to:
1. Determine the year of the engine: This is crucial as wiring changed over the years.
2. Identify the specific vehicle: The wiring harness will be different depending on the car, truck, or boat it was in.
3. Find a wiring diagram: You can often find these online through resources like:
* Haynes or Chilton repair manuals: These provide detailed wiring diagrams specific to the year and model.
* Ford's online parts catalog: This may require entering the VIN.
* Online forums: Websites and forums dedicated to Ford vehicles often have members who can help identify wiring based on photos or descriptions.
* Year-specific factory service manuals: These are the most comprehensive but often the most expensive.
Remember that working with automotive wiring can be dangerous. If you're not comfortable with automotive electrical systems, it's best to seek professional help. Incorrect wiring can damage components or create dangerous situations.
