Injector replacement didn't solve my issue, thoughts?

[Hammerhead]

I was fairly certain this was mechanical, and so was my host. We had Insite hooked up so he could monitor things for our first test drive, and he quickly agreed that this sounded mechanical, not an electronics issue.
I don't pack my boroscope in the truck, and someone had his, so I didn't get to scope the cylinders yet. I will probably do this when I get back home if I ever find a load. I haven't missed anything yet, which is a bonus. Waiting time is a big part of my gig, so to be able to be somewhat productive with it and save some money at the same time is a bonus!
I will be eternally thankful to my host for the open door he showed me, as well as this forum that helped us connect as well.