what are the numbers on the box and hardware #? Have the stock express van 5.7 tune? Have downloaded a couple here, but not sure they are virgin as truck runs horrible.
Type: Posts; User: dflintstud1
what are the numbers on the box and hardware #? Have the stock express van 5.7 tune? Have downloaded a couple here, but not sure they are virgin as truck runs horrible.
got spark?
so where is the 24x ckp -vs- 4x ckp determined? Via the OS level? Not seeing any drop downs or buttons that determine that when I pull up different tunes. Got my 97 5.7 tahoe running with a 411...
dual electric fans