wiring harness matchup!

[creamsicle68]

hey guys. i got a new wireing harness out of a junk truck and wired up the engine bay, but the truck i got the motor harness out of the under dash was all cut up and junk. there is a saburban right next to it that has a good dash and good under dash harness but it is a tbi model and my truck is a carbed model. so my question is will the harness for under the dash be the same for both trucks or do i need to fine one out of a truck like what i have? my truck also has the power windows and stuff so idk if that effects anything.

thanks, Dalton