Thread: What Spark plugs 430+ bhp with msd waisted spark
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Old Jan 11, 2017 | 05:09 PM
  #7  
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DAN400
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From: n Ireland/isle of man
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071 plugs aren't what they used to be , you ll need to by a box of 10 to get 4 that actually work
even then they wont last any time
that's my experience with them anyway
I use ik 31 plugs now , never any problems
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