95 Montero LS, been working on this for awhile doing various other things and now that it's all back together, it won't run right. I found another set of injectors in the back of the truck and they are very clearly different than the ones installed on the engine. As far as I can tell by looking them up, the extra set appears to be the correct set of injectors. They have a shiny metal body. The one's on the engine now are plastic, physically smaller and are green in color. I have no history on the truck but whoever worked on it before left clues that they didn't know much and were somewhat careless putting things back together. I wonder if they slapped these in thinking they'd get some sort of power boost but it actually made it run worse.

Any thoughts? Thanks.