Does anyone know the part #

:banghead: I am currently doing an engine swap in a 1990 s-10. I am swapping in a 3.8 turbo engine from an older g-body car. not sure what kind, but I was told that it was a GN. It is carbed. I have the engine, the headers, the intake manifold, the turbo, the carb, and most other parts. What I lack is the carb mounting plate or flange. I am not extremely familiar with the turbo buick engines and have no idea what the part enen looks like. If any could help I would greatly appreciate it.