* Distributor type: Different distributors have different specifications. You'll need to identify the exact distributor in your car.
* Cam type: The camshaft profile affects ignition timing. A more aggressive cam will likely need different timing than a stock cam.
* Engine condition: Wear and tear on the engine can influence the optimal timing.
Instead of searching for a specific number, you should:
1. Consult your owner's manual (if you have it): This is the best source for the factory-recommended timing specifications for your specific engine and distributor.
2. Check a reputable repair manual for your 1969 Dodge Charger 383: A factory service manual or a Haynes/Chilton manual will provide the specifications based on different distributor types. These manuals often provide charts and procedures.
3. Use a timing light: This is the only way to accurately set your ignition timing. The manual will tell you the correct procedure and the desired degrees BTDC (Before Top Dead Center) at a specific RPM (usually idle).
Attempting to set the ignition timing without the proper tools and information can severely damage your engine. It's best to consult a mechanic experienced with classic cars if you're unsure about this procedure. Improper ignition timing can lead to poor performance, reduced fuel economy, and even engine damage.
