vaccum hose?

[kingd44]

can some one please click on those links and tell me if in fact i m missing a vaccum hose where that hole is in the middle of that clamp and if it is could u tell me where it leads to because i believe i m missing one and that maybe the reason my car is running like shiot....the 2nd link is a close up



http://i270.photobucket.com/albums/j...Picture018.jpg

http://i270.photobucket.com/albums/j...Picture017.jpg