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I started it at the auto part recommendation. I can tell something different afterwords. I re-gaped it (0.50) and split the difference. Seems to be in good running standings.

:help: My local auto part store recommended the gaping be .041 . I just found my manual after i installed the plugs. The 2002 Chevy Tahoe manual says .060 Can anyone tell me if this will do any damage to the engine.?.?.? :help:

Correction... the manual says .060. The plugs are AC Delco. Please help

:help: My local auto part store recommended the gaping be .041 . I just found my manual after i installed the plugs. The 2002 Chevy Tahoe manual says .056 Can anyone tell me if this will do any damage to the engine.?.?.?