This sounds like a fine thing to do on a rainy Saturday. LOL I'll go over to AZ in the morning and see if they have a couple of the IMRC servos. I'm sure I have enough tools to do the manifold so I'll pick up what ever gaskets are needed and plan on taking this apart. I have to do it soon or it will get to blame hot out side and my Willys has flat told me he is not sitting out in the hot sun while I play nursmaid to the van.
My wife said the van ran ok this morning when it was cool but acted up later . It didn't down shift like it has been but she said it did lose power but not as bad. I think the pointer is settling in the area you suggested...the mainifold EGR passages and these intake manifold runnner controls.
I sure do appreciate all of the help. I'll keep you posted.