Haven't done an update in a while, so here goes. It runs! I drove it about a mile and it seems to be alright. At this point it's mostly a matter of putting the interior back together, hood grille and bumper, still need to send the PCM off since I held off on that until it ran, and that's about it to make it functional. I might delay completion to deal with the shifter. The T5 out of the Firebird has a really stout shifter with the world's ugliest shift knob on it. Probably cut it off and weld the factory chrome shifter to the stub (the weld will be under the boot anyway). The stock shifter has a much sleeker look and the knob matches the theme of the steering wheel.
Fun story: the donor car had a spun bearing due to a blown head gasket when I bought it (makes for a cheap donor car). The crank was fairly galled so I opted to buy an engine from a local junkyard that had relatively low miles, good compression check, and had a warranty. Fast forward to one of the last steps of the project, I decided to run a compression test while changing the spark plugs - just for fun. 50,~175,~175,~175,120,~175. Should have done the test before installing the engine. Long story short, I went ahead and got it running and warmed up good before checking them again. This time they were all within a few psi. I'm glad because I just don't know if I had it in me to pull the engine again, swap the clutch, swap the injectors, swap the upper intake, swap the headers, swap the oil pan, and put the whole mess back in.
In general, I'm pretty happy with how it all turned out. The fuel injection is a great thing. With my short drive, I have already tentatively planned to add a low boost turbo setup next winter. Not a lot else to say about this build, so this will likely be my last post about the project unless anyone has any questions.