I'd put the CDR back there. That's where it went on the N/A applications. Later, when you want to put the turbo back on, it's easy enough to remove it again. Why are you going to change out the adapter plate? They're all the same so there's no reason to change it unless there's some major damage to the one that's on there now.What is the best way to seal up the intake manifold and valley pan once I remove the pedestal?