This is a discussion on "peugeot 306 d-turbo" within the Diesel Engines forums. This forum, and the thread "peugeot 306 d-turbo "are both part of the Engine Specific category;
On the std 306 the top mount IC is as good as part of the inlet manifold, you'd really only be able to do direct port if you were going to mount the nozzle after it, which is why I've said go pre.