Big Time Fuel Leak

[Treb]

To start off, this is a 94 with 255,000 miles.

Last night after my wife got home from an approximately 100 mile drive (where she had a flat tire and had to have the rear tires replaced), I noticed a puddle of fuel under the truck. After this, I started the truck and put a flashlight on it. There was a steady stream of fuel running down the frame and dripping onto the ground. I try to trace it back up, and I can get up to somewhere around where the fuel filter should be (I have the prime loc remote fuel filter) and there's just fuel spraying all over back there. Can't see where it's coming from because there's too much in the way. It seems to be pulsing and also seems to be RPM depended. . .When I rev the engine, more fuel seems to be coming out. It's hard to tell, but it looks like the fuel is coming from somewhere just above and to the left side of the starter. Shouldn't be any fuel lines over there, though. Am I right???

Anybody have an idea? Also, how hard is it to move the master cylinder out of the way? Might be able to see it from the top if it wasn't there?

Any help would be greatly appreciated! Gotta have this thing running by Monday so I can get to work.