* Engine specifics: The exact specifications varied slightly depending on the carburetor (2-barrel vs. 4-barrel), the automatic transmission (if equipped), and any factory options.
* Engine condition: Worn components can affect ignition timing needs.
* Fuel type: The recommended timing might be slightly different depending on the type of gasoline used.
To find the correct ignition timing:
1. Consult your owner's manual: This is the most reliable source. Look for a section on specifications or tune-up procedures.
2. Check a reputable repair manual: A Haynes or Chilton manual for your specific year and model Thunderbird will provide the correct specifications. These manuals often have detailed instructions on how to check and adjust timing.
3. Look for a sticker under the hood: Some vehicles had a sticker with specifications, including ignition timing, located under the hood.
Without access to your owner's manual or a repair manual, I cannot provide a definitive answer. Attempting to guess the timing could damage your engine. Incorrect timing can lead to poor performance, reduced fuel economy, or even engine damage.
