Thread: 488's or 513's
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Old 10-25-2009, 08:08 AM
  #6  
russ67chevelle
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Join Date: Jan 2005
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id look at your converter! math says u should be @ 6550 rpms with that 112 mph! so if u are at 7800 rpms thats like 20% slippage!!!!!
good luck
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