Impossible to find cold weather issue

Hey, been a while since i tried to diagnose this problem, but with local temps around here in uptsate NY getting to about 10 at best, my problem has come back.

I got an 01 cummins HO, 6spd, SBDD, AFE intake, ATS mani, Airdog 2 165, DDP75's (right now) but will have bigger sticks in this summer, and a Smarty.

My problem is I can start the truck up but after about 5 mins (whether plugged in or not) the truck idle starts bouncing, hunting for fuel i think? The other day i drained my filters in my heated garage n found about 1oz of blue gelly stuff (guess it was cold!), but everything else was fine no gel issues, and from what i can tell the w/s filter is still working well (just changed them this past summer). Im wondering if perhaps my smarty being set on 5 is too high for the winter. Idk if I should just turn it down to 1 or take it off. Seems to be the only thing i have yet to try, but that seems a little weird to me that the smarty would be causing my hunting idle issue.

If im driving down the road i have good fuel pressure (12-15), good boost, and the pyro is low, but if i drop the hammer the truck bucks a little, like a burp of fuel goes by and it barks at me (for just a split second). If i come to a stop it hunts for idle and will bounce and almost stall before catching itself, so i end up having to keep one foot on the brake, the other on the gas and rev it to about 1200 so i dont stall in an intersection (quite a hard switch from brake to clutch on hill starts!). If the truck does die, i have to pop the hood, and bleed the fuel lines to get fuel back into the engine, and then get going down the road after apologizing to several cars about y i didnt move when the light turned.

Either way, if you managed to read all this, you must be able to tell me where to look and what to check for, and perhaps if my smarty is causing my issue or not. Thanks.