Sounds like it's starving for fuel and/or air. Don't know how many miles are on it, but maybe replace the fuel filter and the fuel pressure regulator to see if that helps. I know when I replaced my fuel filter at 60,000 +/- I could barely blow through it so it was pretty clogged.
This might be way off, but have you taken a look at the air filter? Is it clogged and not allowing the VX to breathe?

Oh, almost forgot....welcome to the family.