* Year of Manufacture: The engine's design and the recommended timing changed over the years the 318 was produced.
* Engine Modifications: Modifications like camshafts, carburetors, or added ignition components will significantly alter the optimal timing.
* Fuel Type: The type of fuel used (regular unleaded, premium, etc.) can influence the best timing setting.
To find the correct timing for *your* Dodge 318, you need to consult your owner's manual or a repair manual specific to the year and model of your vehicle. These manuals will provide the base timing specification, often expressed in degrees before top dead center (BTDC). They may also specify adjustments based on engine vacuum.
Attempting to guess the timing without this information could damage your engine. Improper timing can lead to poor performance, reduced fuel economy, engine overheating, and even catastrophic engine failure.
