Gremlinsteve,
What is the ultimate control of the MDS? I think I read that it is some sort of oil control to half the lifters, but I gotta confess that I really don't know much about the system. Obviously, there has to be some control of the injectors firing in to the disabled cylinders as well. I can forsee an "alternative" EFI controller being able to operate the MDS in a stone-axe kind of way, maybe in the same kind of way that folks are making the lockup and OD work on 518's. Not exactly the same of course, but basically a low-tech way of achieving the same end.

What are your thoughts on kludging your way to MDS if all the operatinal parts are in place?

Clair