I have spoken to Tom as well, although my issue was a little different. But in any case I was trying to get larger jets too. He said it was most likely some crud stuck somewhere, and to take them all apart and clean them. As you have mentioned he seemed somewhat aghast that anyone might need to actually tune an intake system. But I have read several articles/posts about/by people who changed the jet sizes in this application, by either drilling them out, or getting new ones, (at least one of the people was successful in locating different jets, and no I don't remember, or I would be getting some for myself.) So I don't suppose it is completely out of line to figure you might need to do a bit of "ADJUSTING", I mean you need to tweak pretty much anything you buy anymore, don't know why this should be any different.
