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What is spark plug gap on 16 valve 1988 Chevy Nova?

The spark plug gap for a 1988 Chevy Nova with a 16-valve engine (likely the 2.0L or 2.5L depending on trim level) should be 0.045 to 0.055 inches (1.14 to 1.40 mm). However, always check your owner's manual for the precise specification recommended by Chevrolet for your particular engine. The manual will provide the most accurate information.