I agree that it seem like a restriction but not due to a rag as I just double checked. It's also now obvious that I have one other issue...#6 injector is bad so I will replace this week.
I found that the only hose that seems to be the issue is the turbo intake on passenger side. When it's connected I get crap combustion. When I remove it I get combustion on all cylinders (accept for 6 obviously) and it revs reasonably well and then just wants to die. Could there be blockage further up in the system? Would the recirculation on that side have anything to do with this? I noticed that I have stronger vacuum on passenger side going to recirc. valve than I do on driver.