Thread: 500+ engine starting problems
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Old Oct 18, 2015 | 03:28 PM
  #12  
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Mark Shead
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From: Marlow Bucks
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Originally Posted by cossynut2
The IK27 plugs are more for track day use when the engine is running hotter, I dont think they will help but if you have a set try them.
IK 27 is the correct heat range for a 500hp engine.

Mark
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