'95 Caprice LT1. While changing my plugs today I discovered this vacuum hose that comes out of the driver's side of the opti not connected to anything.


Also, on the bottom of the opti there's a port, which I assume is for vacuum. What's it for? Hopefully the hose I found goes to it hehe.

 

1 of them is supposed to go to the drivers side of the intake manifold. The other which I suspect is the missing hose goes in that hole on top of the intake elbow.

 

Look here.

 

That's awesome, thanks! Now just need to figure out what the hose hanging out of the side of the opti is.