Smog/emissions delete

[C&C Chevy]

Wanting to clean up the engine bay on my new truck. Make it easier to look at and work on at the same time. My state doesn't care.

The only requirements is that I don't loose MPG's and no check lights to stare at..


One of my main worries is the stuff up by the A/C lines(little silver cap and the plug stuff). I have no idea what this stuff is and what it does..

Chunk it all? Fuel vent?

All this is smog pump related and is good to go, right? What about holes in the headers?

What does the vacuum line up the left side to a electrical connectiong do? And why is the manifold vacuum run to the windsheild cleaner line on the right.

Feel free to point out any lines that are safe to remove! Thanks!