* Engine specifics: The exact specifications varied slightly depending on the exact model and whether it had any modifications. A high-performance version would have different timing than a base model.
* Engine condition: Worn components can affect optimal timing.
* Fuel type: The recommended timing might be different for regular unleaded versus premium.
To find the correct timing for *your* 1990 Mustang 302:
1. Consult your owner's manual: This is the best place to start. It should specify the recommended initial timing setting.
2. Check a repair manual specific to your year and model: A Haynes or Chilton manual will have detailed specifications and procedures. These manuals often include different timing settings depending on engine condition and fuel.
3. Look for a sticker under the hood: Some cars had a sticker indicating the factory timing setting. This might be faded or gone, but it's worth checking.
Without access to your specific vehicle's documentation, I cannot provide a definitive timing specification. Incorrect timing can cause serious engine damage, so it's crucial to find the correct information for your particular car.
