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The high-performance spark plug gap for a 1976 Chevrolet 350 engine typically ranges from 0.035 to 0.045 inches, depending on the specific application and ignition system used. For high-performance setups, a gap closer to 0.045 inches is often recommended to improve combustion efficiency and power output. However, it's essential to consult the engine's specifications or a performance manual for precise recommendations tailored to your setup.

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5mo ago

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