Not only will you not need to screw with it, you can't, it's actually rivited on, and you shouldn't be able to change it even if you wanted to. In my case, I pulled out the rivets in order to be able to screw with it, but you have no need, and I wouldn't recomend it unless you really know what you're doing. In order to remove the TB, just unplug the sensors and hoses, and then just undo the 2 nuts and 2 bolts, and you're done. You may wanna consider replacing the gasket. Carb cleaner shouldn't have any affect on any sensor, but be careful regardless and don't directly spray any of the sensors.

As far as the catch can and crank case breather, unless you buy a breather with detailed instructions, or you know what you're doing, have someone else do it. A company out of texas called Endyn makes a catch can, and Larry can walk you through how to do it. It's on the pricey side, but I'm sure there are others on the market. If you get anything from Endyn, tell them AJ sent you, and they'll help you out with some tech questions if you end up getting it from them.

Later,
Aj