Keep in mind, adding boost will also add more heat. Higher IAT's can decrease timing and rob power. More boost may do wonders on a nice dyno, but at the track the high IAT's can really slow you down. I have the Johnson pump and ebay heat exchanger on my XF in an effort to keep it cool, but I'm still seeing 150F temps at the track.

Just wanted to advise you of the pitfalls associated with chasing more boost.

As for the modified intake manifolds, I think that's a great idea. As for the pulley, post up in the classifieds section and someone should be able to help you out. I recently purchased one as a backup, but I really don't want to part with it.

By the way, I see you're only 2 hours from Steele, Alabama. Steve and I plan on taking a trip down there to run at the dragstrip this December. I hope you can join us.