I just bought an 86 iroc-z that had a dissassembled motor, which I have nearly put back together with all new parts. However, I am confused about the air induction. It did come with a black, dual air induction peice but it looks like there is a bottom component that it bolts on to or something? I order a "filler cover" from classicindustries.com because my radiator shows and it seems like there should be something there, maybe that is what the intake bolts on to? Thanks in advance.

there are 2 pieces, both plastic,one has holes that the induction piece connects to. the other piece covers the top of the radiator and bolts onto the electric fan shroud.

you can find the whole setup or pices on ebay dirt cheap.