Now that you have a nice shiny new engine in there it draws attention to the parts that are rusty, don't ya just hate it when that happens?
The cool part is you can pull all the rusty parts out of the engine compartment all at once, restore them and reinstall them the next day, or if you like a more casual approach you can do one or two parts at a time.
It will give you something to do when you get bored.