* Year of manufacture: Cadillac engine specifications changed over the years the 472 was produced (generally 1970-1976).
* Engine modifications: Any modifications to the engine (camshaft, carburetor, intake manifold, etc.) will significantly affect the ideal timing.
* Fuel type: The type of fuel used influences ignition timing.
* Engine condition: Wear and tear on components will also affect the optimal timing.
You cannot rely on a single number. To find the correct ignition timing for *your* specific 472 Cadillac engine, you must consult:
1. Your owner's manual: This is the best source if you have it. It will list the recommended specifications for your particular year and model.
2. A Cadillac engine repair manual specific to your engine's year: These manuals provide detailed specifications and procedures for setting the ignition timing. They'll often specify a base timing and then a procedure for adjusting it based on engine performance.
3. A reputable mechanic: A mechanic familiar with Cadillac engines can diagnose your engine and set the timing correctly using a timing light and other tools. This is the recommended approach if you're not comfortable working on your engine yourself.
Attempting to set the ignition timing without proper knowledge and tools can damage your engine. Always consult the appropriate resources before making any adjustments.
