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Old 12-01-2007, 11:19 AM
  #7  
SST4530
Senior Member
DYNO TECH
 
Join Date: Feb 2004
Location: Leonard, Texas
Posts: 414
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If you have an eltronic tach,(most do) it could be shorting out at around the 5000 rpm range. I had this happen with a Mallory tach once. Almost never figured it out.
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