I started off drilling a small hole in the PVC then just making it bigger until the hose could barely fit in there then i just jammed it in. I ended up taking out the PVC and just using the stock rubber tubing. No particular reason, just preference.
It is a vacuum line I know exactly which one you're talking about.
plus read here: http://www.grandprixforums.net/has-a...tml#post560319