I hear that with timing chain wear you need to change the injection timing. So about how many miles will this need to be done??

One more small question, around what gas milage would you get in a '86 chevy 3/4 pickup 6.2L 4x4 with turbo 400 tranny that is a stock truck, no 44" super swampers or anything like that?

:confused: Thanks alot :confused:

Im guessing you have 4.10 in the rear? i think that nets guessing 16-18mpg?

someone else can chime on that.