My GTV6 shop manual has a couple pages in the fuel section showing some of the air (vacuum) lines and a couple images of the engine compartment. If you think those could be of any help I could scan and email them to you.
The diagrams are typically found on the Emissions sticker. Unfortunately, most of the cars are missing them. John M recreated many of the stickers for the GTV-6 a number of years ago. Below is part of the sticker that shows the vacuum hose placement. It looks a little different than the original in the second picture.