fuel system is probably all shot. I have found any extreme periods of sitting and the fuel will turn to varnish. pop the gas cap off and you will probably smell the bad gas right away. If so you might be able to get the tank boiled out at a radiator shop. hopefully it is not rusted on the inside. if it is I have heard of guys rattling a chain around on the inside, and there is some sort of paint you can apply to the inside to save it.
just replace the line and rubber from the tank to the pump, if the line is rusty on the inside you will be cleaning it out of your filter forever!
I ran a rusty line on my 56 chev for a few years, and had to replace the filter every few months.