1980 GMC sierra emissions components.

i am trying to get my 1980 GMC sierra 1 ton stake body truck back on the road after sitting for years.. but i need the emission pieces :disappoin .

does anybody know where a image or diagram of the emissions compents are in the diagram?

Check into this, in some states after 25 years there is no emissions test, also on a 1 ton there may be some exceptions.