I have been known to be a few pickles shy of a full deck.
I do have information, however: you don't have any more work to do. No syncing of throttle bodies for a 990 engine. Under chapter 8 they have it broken down in to carbed and FI systems. Under the carb section it has a heading "Synchronizing the carburetor" and there is no matching section under the FI part. Nothing that even comes close.