[Shon]

It would be beneficial to find someone local that can log the truck while driving. I can probably help find a shop that has the equipment to do so that would be willing to help.

But the Knock sensors and the ignition is a good starting point.

Also, do you have a K&N style filter? lots of times those are over oiled and the residue gets on the MAF sensor and that messes up things big time.