fuel press or coil pack?

The normal fuel pressure for your car is 30 - 45psi. Sounds like it's at the low end of the specs. Try disconnecting the vaccuum line from your fuel pressure regulator and see if the reading goes up. The book says it should be 40 - 50psi with it unplugged. With a supercharger and that much boost, it sounds low to me. A coil pack can cause symptoms like this, but with the fuel pressure where it is, I'd look into the pressure regulator first. By the way... how many miles are on it?