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Old 12-30-2012, 12:47 PM   #2
Scooby Newbie
Member#: 336241
Join Date: Oct 2012
Chapter/Region: MWSOC
Location: Colorado, New Mexico
08 Sti


Is this a stock rebuild on your 257? Where you running mods before the rebuild? If so you may need to get a touch up tune.

As soon as my motor was finished I started data logging and sending the logs to my tuner. On 91 I was getting knock all over. On e85 it was okay at first but at around 800miles on the motor I started running lean all over the place, so my tuner got that fixed after that it has been smooth sailing.
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