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Old 06-12-2013, 06:33 PM   #2
Unreal

 
Drives: 2006 Z06
Join Date: Oct 2010
Location: Gilbert, AZ
Posts: 2,151
Agreed. Friend had 12k+ miles on his 680rwhp l99, stock valve train. Now it makes almost 800 and no issues. The tranny on the other hand doesn't like it.
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Nick
2006 Corvette Z06 -1047rwhp
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