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I use Bosch Platinum plugs FR8DPX in my 351W. IMHO, I think most all plugs are the same when new. But what are they like at high mileage? There is the difference.
But with good plugs around $3 each, just put in a new set every spring. That's what I do.
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Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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