Uploaded August 2025 | Updated September 2026, 3 weeks ago

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Choosing spark plug heat range the right way prevents detonation, saves pistons, and keeps power consistent. In this video I break down what heat range actually means, show examples of different range plugs and give you real-world recommendations for street, high-compression NA, boost, and nitrous builds. I’ll also show you how to read a spark plug fast so you can verify your choice on your own combo.

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AC Delco hot plugs - https://a.co/d/crMTdnx

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#sparkplug #heatrange