'87 K5 Blazer 4x4

LOOK YAL I GOTTA ROUGH IDLE AND I BELIEVE ITS A VACUUM LINE CROSSED BEHIND THE THROTTLE BODY. 4 OR 5 COME TOGETHER THERE IN A COUPLE T'S BUT IT DOESNT LOOK LIKE FACTORY STUFF.

I NEED A DIAGRAM OF THE VACUUM LINES IF ANYONE HERE CAN HELP ME OUT.:banghead: