So I just got done replacing the LIM gaskets on my car. Intentionally took my time with it to triple check torque on fasteners and make sure any vacuum lines were adressed if they tore or broke (only lost the "T" at the snout!). Put the Fuel pump relay back in, filled the coolant, connected the batt, primed the fuel lines (a few times for good measure), and went to start it up. It hesitated to start, as if there was not enough fuel in the line yet, so I let off it, and tried to start again. It started, but idles terribly, and when I can get it to keep idling long enough, it's showing a misfire on all 6! No codes have triggered yet, and my LT & STFT's are significantly better than before I did the gaskets, so I'm inclined to think there is not a vacuum leak. I have already spent another day going over the stuff that I have already checked a few times again, and every wire is connected that was disconnected, spark plug wires are in the right place, plugs are a little dirty, but not fouled out, The fuel pump can be heard priming every time I turn the key to the on position, and there is fuel at the schrader valve! If I give it a little gas I can make it start every time, but if I don't, it's a bit of a crap shoot if it will start right up or not. I unplugged the maf while running, and it ran worse. I also left the IAC unplugged, and it seemed to at least idle better, but went apesh!t when I put it in gear. I'm thinking/ hoping this is all from the IAC, but it's just odd that it would die at this particular time. I have read many a post that went down a similar rabbit hole without much resolution, so hopefully this will be enough detail for someone to see something that I'm not. Also, does anyone know what pins to measure resistance at on the IAC?

Sorry for the novel-