I'm not sure about checking the power at the injector.(as in amount of volatage I know they are getting power but i'll verify how much)......... I've never tried it but it should be easy enough to figure out. I know all of the injector plugs are seeing some sort of pulse. The noid light showed all worked but I believe they were on the dim side.
I'm going to pull the lower manifold with the injectors still connected and crank it while actually watching the injectors. I've got other injectors I can swap it and i'll try the injector plugs in different orders until I figure which part is the problem.

I'm hopeing it's injectors because I need a bigger set anyway and chasing electrical problem isn't something anyone enjoys.

The motor showed good compression for not having any miles on it yet. I was in the 135-150 range across the board. Its yet to run since we put it back into the car.