You must consult your owner's manual to find the correct gap specification for your specific engine. The manual will list the recommended gap in inches or millimeters.
Failing that, you can:
* Look up the specification online: Search for "[Your Nova's Engine size] spark plug gap" (e.g., "1988 Chevy Nova 2.8L spark plug gap"). Several automotive websites and forums may list this information. Be absolutely certain of the engine size!
* Check the spark plug packaging: If you're buying new spark plugs, the packaging often specifies the correct gap. However, you might still need to adjust it slightly with a gap tool.
* Consult a mechanic: A local mechanic will know the correct gap for your Nova's engine.
Using the wrong gap can severely impact engine performance, leading to misfires, poor fuel economy, and even engine damage. Therefore, finding the precise specification is crucial.
