I hate CHAMPION plugs, never could get them to last any time at all in a normal warmed up small block BUT i came across their "TRUCK PLUGS" a couple of years ago and have used them ever since, I like NGK or BOSCH "platinum tipped" normally but these TRUCK PLUGS have really passed the test for me in my 350 While I was using it to play off road with, Sometimes idling for extended periods of time crawling in the rocks or sand. Now I'll give em a shot on the street.
RON
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