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  1. Sorry forgot to add 2006 Hummer H2 6.0L LS1B...

    Sorry forgot to add 2006 Hummer H2 6.0L LS1B system
  2. Newbie needs help with Hummer H2 timing question??

    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...
  3. Thankyou

    Yes I know that basic tuning needs to be accomplished but the cam position sensor has been
    advanced 2 degrees and I'm not sure what is exactly controlled by that reading (injectors,ignition, timing...
  4. Advanced Camshaft Timing What needs to be changed in tune???

    I have a 2006 Hummer H2 with 6.0L LQ4 block, LS1B in my tuner selection. I have installed a new timing chain
    and I advanced the camshaft position 2 degrees, equals 4 degrees crank advance, to get...
  5. Replies
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    2,700

    Another new tuner question???????

    I have a 2006 Vette with an E38 and I have been reading for more than a month before attempting to tune for a
    new cam. I have found many wonderful tuning guides for the LS1 and they have taught me...
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