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Humphreys2010
05-31-2021, 02:24 PM
hello im new to tuning. currently im working on a 12587603 with a stock 4.8 and 4l80e for my 64 c10.

hopefully i can learn more about this part of "wrenching"
dave w
05-31-2021, 03:25 PM
:welcome:

Gearhead-efi link for OBD2 tuning information: http://gearhead-efi.com/Fuel-Injection/forumdisplay.php?32-OBDII-Tuning

dave w