[Midnight Goat]

Hey fellas, just got enough cash to finally replace my fuel system and I have some questions. My current fuel tank is gummed up and full of rust so thats the first thing I want to replace. The current one has a vent tube on the filler neck and the cheapest tank that I found states that it doesn't have a vent tube. What does the vent tube do exactly and is it really necessary? What else should I replace while Im doing this? Sender Unit? Im reusing the electric fuel pump thats already down there but what about the fuel lines? I was thinking about just shooting some compressed air through the lines to clear them but do you think I should replace them? I also have this crappy fuel regulator (the 20 dollar napa one) and I want to replace that for sure. Im not even sure its working in fact I think it might be part of the problem. What happens if I take it off and don't replace it? I think thats all the questions I can think of for now but by all means if I missed a part of the fuel system please chime in with some info or advice.