and what does it do? it's on top of the manifold off of a 94 s10 blazer 4.3

http://i112.photobucket.com/albums/n...Picture010.jpg
http://i112.photobucket.com/albums/n...Picture009.jpg
http://i112.photobucket.com/albums/n...Picture008.jpg
http://i112.photobucket.com/albums/n...Picture007.jpg
http://i112.photobucket.com/albums/n...Picture006.jpg
http://i112.photobucket.com/albums/n...Picture005.jpg

also how do i get the pictures to show up on the page?

 

That is the Intake Tuning Valve. The intake is split in half on the first series of vortec motors. This opens the intake and joins both halves in the higher rpms.

At the end of where you type, there is an option to embed picture. click that and ad the picture.

 

Yup, that's what it is.

Check out the Help & Suggestion Section at the bottom of the main forum list for the Image FAQ.