A friend of mine just bought a 00 si with a b20 vtec swapped in it, after getting it home he started hearing a hissing sound. It's got a vac line off, not sure where it goes, any help is greatly appreciated. Here's a vid of where it's coming from, just not sure where the other end of the hose should go.
http://www.youtube.com/watch?v=CyiwYbWxe2A
http://www.youtube.com/watch?v=CyiwYbWxe2A