i was under the impression you only re-zero your cam gears/go back to stock cam gears when upgrading your cams, not when going single.... i think you will still see gains with them adjusted regardless of what turbo setup you are running as long as you are on stock cams. once you upgrade cams though, you need to reset them to zero.
Not to get off topic... Ive never had the cam gears off of my car yet, and dont have any aftermarket cam gears yet either... Has anyone weighted the stock cam gears compared to the aftermarket?
This may be total nonsense, but Ive been curious that even though they dont help with cams (and apparently with single turbo setup either), if there is at least some weight savings... esp. since its rotating weight within the engine.. maybe it could at least provide faster revving... :dunno: