+1 Those hoses are probably all cracked and leaky. I'd also test fuel pump output and any sensor related to temperature, like the coolant temp sensor. If that's bad it'll lean out the injectors and stall the car.
Does it only happen when the car is warmed up? Could also be the O2 sensor...the car is in open loop until it warms up that sensor, then it goes into closed loop and the O2 sensor has a lot more to say about how much fuel you're getting. Just unplug the O2 sensor and see if the problem goes away. Your mileage might go to hell, but you'll know where the problem is...
I think you can use the cheap Ford Mustang heated O2 sensor if you don't mind cutting & splicing. They're less than $20 IIRC.