I am a new member here but have been reading it for some time. I am finishing up removing the knock sensor and some other parts that were bad. I have this bracket that I forgot where it goes. I think the plug wires clip on it somehow but I could be wrong. If anyone has any clues as to where this goes PLEASE let me know. Thanks

 

Passenger side, from head to upper intake.

 

Andy_A is correct. It is the Air Intake Chamber Stay. http://personal.utulsa.edu:80/~natha...68cylinder.pdf The top shares one of the bolts that holds the EGR tube to the plenum (upper intake manifold).