That required me to pull out the clutch fan, and the air intake assembly. I got it all put back together (it was fairly low light, and using a flashlight by the last part).

Then, I tested. The car started up, ran rough, then died after idling for a bit. Then, each time I tried, it would start, then immediately die. Pressing and holding the gas pedal didn't help.

I suspect it's a vacuum leak of some sort. Probably, in the dark, I didn't get everything back together 100%. I'll work on that this evening after work. But any other thoughts on what it might be? Or am I headed the right direction?