Hooooooo kay, fiasco time!
Brought it in to change the oil, trans fluid, figure out why it stumbles on throttle opening, pull the wheels off and give the car a look over. Oil looked good, trans fluid was like mud - as expected, it didnt shift for shit when cold. Plugs looked ok, but need changing, throttle body wasnt clogged up with crap. Everything inside the wheels looks good. Put everything back together and the car doesnt hold an idle and runs awful at part throttle.
After checking everything, and retracing everything I did, I found a cracked hose that feeds the idle air control, cracked on the bottom where you couldnt see it. I must have nicked it when pulling the intake off.
The throttle stumbling was a backwards check valve, there's a little dashpot with a diaphram in it that keeps the throttle from closing too quickly - it was backwards, keeping it from opening too quickly.
*phew*
Also, I noticed the muffler hanging a bit low and something hanging out of it... i gave it a tug, and it sort of wanted to fall off... so I unbolted it from the b-pipe and it did. I guess i have to get another one now - its quieter without the "muffler" on, so maybe I'll still drive it to work tomorrow