I really don't understand why the noobies always want people to email them with advice. Do they not know how a forum works? Can they not see the post reply button at the bottom of the page? Is the search disabled for the first month of membership?
Anyway, one thing that might help to know is how much boost will said twin turbos produce? If its something like 5-6lbs, in which case I would stay away from them because for what twins cost, they should be making a lot more boost than that, but anyway, if is only like 5-6lbs you really don't need to do anything. But if its something like 25-30lbs. then you start getting into thicker head gaskets, head studs, lower compression pistons, stuff like that. Don't take this advice to heart though, this is just my knowledge of building diesels so, while I assume it would be the same process, I'd wait on someone else to chime in.