ok, that little black plastic piece, how is that supose to fit in that hole. it has this little peg on it that looks like its suppose to fit into something but i dont see anything for it to fit into. also, what is that piece for?

 

come on guys. its a simple question. i want to finish this before it gets dark

 

Wedge it in, if it doesn't fit, leave it out. I doubt it makes any significance in the air coming through your intake pipe. I don't have that piece on either.

 

if u leave it out.. make sure u plug up that opening