here's a few more of the intake manifold, one pic of everything under the hood, and some pics of the intake hose from the filter. As for a black box under the manifold, there isn't one that I can see. The only black box is the one that holds the filter next to the battery. There isn't anything under the intake manifold. hope this helps

http://i29.photobucket.com/albums/c2.../engine005.jpg
http://i29.photobucket.com/albums/c2.../engine004.jpg
http://i29.photobucket.com/albums/c2.../engine003.jpg
http://i29.photobucket.com/albums/c2.../engine002.jpg
http://i29.photobucket.com/albums/c2.../engine001.jpg