Vacuum

I have a 95 GTS and its been runnin like $***, 10mpg, strong fuel odor, and hesitating and popping when cold and taking off. I pulled the MAF and cleaned it and it runs great, real smoooooth and no more odor (not sure bout mpg yet).:SNSign:

I bought a code reader about a week after I got the car (problems with sensor in dizzy) and I have been getting 3 codes from the continous memory, and the KOER test (332,311,314). I thought that this was from the aftermarket exhaust but when I pulled out my CAI i found a nice melted ball of vacuum lines that were stuck to the header and there are no lines connected to the two valves on the line commin from the smop pump. I'm pretty sure I know where everything goes but I was wonderin if I can just buy some vacuum line from AZ too fix or will it be too soft and collapse. I wanted to go to the Stealer but my waterpump just started leaking like a SOB and Im broke atm. Sorry for the long post and grammer but I need some advise before I waste any money.

Well I replaced the water pump and the vacuum lines and it runs a little bit smoother and not getting the 332 code, but im still getting 311 and 314. What else should I check?