23hotrodrExplorerJul 03, 2020spark plug gap for Workhorse (GM) 8.1L ?Anyone know what the spark plug gap is correct for 2007 Workhorse 8.1L ? Thanks-- Mick
rgatijnet1Explorer IIIJul 03, 2020I think the factory says .060 but many people also recommend .045 for better performance.
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