Truck is missing/ backfiring

[99ramrunner]

So I finally got my truck running and driving but when I step on the gas and try to speed up it starts backfiring or missing idk but it shakes the whole truck and it just won't go!! But as it warms up it god away, but it not throwing the check engine light or any codes, anyone know what I should check or do?

 

[Okiespaniel]

CHeck for vacum leaks for starters...or perhaps your idle speed selenoid isn't working right.

 

[99ramrunner]

Ok, do you know where or how I could find a vacum line schematic?