After spending a good little bit of my sunday off looking into this, here is the customer we had he is speaking of. And with all my PM's from this person I never received a phone call or message there was a problem.
Apparently we did fail to supply a flow sheet with this set. A set that was handed to us to only install o rings and flow.
How a second party had such a huge difference in flow #'s to me sounds a bit fishy and still never heard that after the injectors were "redone" by someone else that the truck even runs now............?????
SO we did fail on the part of delivering a flow sheet. At this point with the giving information on hand that's all I can verify we are at fault for.