So been super busy all 3 fuel filters both fass and an acdelco all failed to stop contamination in the tank that was there which it why it drove fine initially then got worse from there.
All 8 were plugged with contamination so tank was dropped cleaned s&s cleaned the injectors up sent them back replacing 2 nozzles in the set.
All new filters pushed Clean fuel out the rails and new feed lines trucks up and going again.