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Old 03-31-2010, 07:32 AM   #2279
jbsrace1
 
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Drives: 2010 2ss
Join Date: Aug 2009
Location: Georgia
Posts: 211
Quote:
Originally Posted by Mark H View Post
I don't get it. They put it on the dyno and it dyno'd 425 rwhp when ford says it something like 411 at the crank.
Maybe I heard it wrong I am at work watching on my iPhone in the corner
They are adding like 15% for drive train loss.
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