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Thread: 5.3 ls carb/ need help tuning!!!

  1. #1
    Potential Tuner
    Join Date
    Jul 2016
    Posts
    1

    5.3 ls carb/ need help tuning!!!

    1999 5.3 ls with a 4l60e transmission. Recently converted over to a carb and would like help tuning this engine/transmission. Also if anyone has there tune I could look at to compare.

  2. #2
    Advanced Tuner Montecarlodrag's Avatar
    Join Date
    Nov 2009
    Location
    Pegasus Galaxy
    Posts
    919
    You need a PCM to control a 4L60E. Why the carb conversion if you need to keep the PCM regardless?
    9 sec Montecarlo SS