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inputapmech
June 10th, 2014, 08:34 AM
I have replaced the stock timing gears and advanced the timing by 2 degrees... What changes do I need to make to the ECM to take advantage
of the timing change... I am trying to increase low end power???
Thankyou for any help...

inputapmech
June 10th, 2014, 08:36 AM
Sorry forgot to add 2006 Hummer H2 6.0L LS1B system