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Old 06-07-2009, 08:46 PM   #28
Speedfreak
 
Drives: 1999 30th Anniversary Trans Am
Join Date: Oct 2008
Location: Florida
Posts: 681
Line lock FTW. LS engines need at least 5k miles to break in. I remember when I first got mine its like it picked up 50 hp at 7k miles. Many 4th Gen Fbody'd guys reported the same thing with their autos when they first got them.
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