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					Originally Posted by Aus986
					
				 not that mechanically minded.
 I take it to my mechanic tell him it is running too much boost he returns it.
 I am kinda figuring go down to 215 220hp now and with breathing aparatis it will hit a safe 240-250
 
 you can feel the car struggling for Oxygen it is wierd
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Hi,
      It may not be struggling for OČ at all, what you feel could be detonation...
Happy Motoring!... Jim'99