I got it started! But it's not running well- HELP!

Not sure what I did or didn't do to get it started. I

Checked for return flow from IP - good

Check resistance to glow plugs - good....it think. I pulled the first one and tested it manually with jumper box.

I warmed the engine with the block heated for a couple hours as it is about 40 in the garage- I got it nice and warm.

Held the pedal to the floor and cranked. Within 20 seconds it started.

HOWEVER, it was choking and smoking a bit (which I expected - bluish gray) but it was idling with the pedal on the floor. Once I lifted the pedal it immediately died out. Something seemed to be restricted or its something I don't know about.

I do not have the trap oxidizer and I just checked the fitting in the intake that goes to the ALDA (it wasn't clean, but wasn't clogged)

I pulled the pressure test plug on the exhaust manifold and it allowed me to raise the pedal almost to the top then it still shuts off (very slightly better). It will not rev up at all!!!

ANY IDEAS???

I'm thinking maybe there is something really restricted in the exhaust somewhere. There are three different cat/resonators or mufflers on the exhaust still - I don't know where to look now?

Sorry I'm going to post this on another thread that I started too.