i got a old carbed 2.8 i wanna put a 3.4 in its place with no computer just straight carbed. what all will i need to do the swap? not concerned with smog whatsoever.

 

Short version: Get a 3.4 long block, swap everything from the 2.8 on to it.
Longer version: What was stated above plus a bunch of searching since it will depend on what year 2.8 you have and the accessories. Start by searching for the 3.4 swap boogie to answer some questions and go from there.

 

https://www.thirdgen.org/forums/v6/3...-3-4-swap.html
https://www.thirdgen.org/forums/v6/6...tml#post365850
These two articles were fantastic help when I was doing my swap. I have MPFI, but the basic swap is the same, if you need any help, hit me up.