Back in it...
Did a compression test tonight
Cyl 1 - 360,355
Cyl 3 - 360,380
Cyl 5 - 375,380
Cyl 7 - 300,300
Cyl 2 - 390,380,360,360
Cyl 4 - 310,310
Cyl 6 - 310,320
Cyl 8 - 280,290,300,300
For the high and low cylinders, I went back to that cylinder and took a couple extra readings. The engine was cold, all glow plugs out, FSS disconnected. Basically I would crank over about 6-8 times for each cylinder, the compression usually reached its highest value by that point.
Is this healthy enough to bother with?
If so, I have a set of newly rebuilt injectors I will put in. But I will have to reuse one of the pumps. Probably the first pump (the one that was on the truck to begin with).