As I bought the car non-running, I don't have an accurate picture on timeline. I'd estimate that the gas is 13 months old. There were only a couple gallons in the tank once I was able to start it as the low fuel light was on. I went ahead and added 5 gallons of fresh gas to the tank.

If I test for fuel pressure at the rail, and it is right on, wouldn't that tell me if it is regulating fuel properly? Which would lead me back to a vacuum issue which means I need to replace the vacuum lines. Can you tell me what the pressure should read at the fuel rail? If you don't think this could be the culprit I'm open to suggestions. I'm also not opposed to draining the gas completely or just adding another 5-10 gallons to the tank since it is a 16 gallon tank. That should dillute the old gas enough to eliminate that question.