[Gearhead999]

1. Ground wire. More then likely for the electric choke. If it isn't attached to anything and the choke is working [Grounded] take it off.

2. Helpers for the front springs. Trying to give the front springs some more life. The car must be sagging or bottoming out. Buy new CORRECT springs. They are cheap and with the correct tools, aren't hard to replace.

3. Should probably be a breather or PCV valve. I'd put the PCV valve there and a breather cap on the other valve cover.

4. Oil breather cap, with PCV on top of it. As said before, I'd move the PCV to the other valve cover and put a straight breather cap here.
P.S. No it isn't an EGR valve

5. Factory breather hose to go to air cleaner.

Hope this helps.
5.