2000 Chevrolet Silverado that turns over but won't start?

[Christy]

The truck died while driving.
Fuel pump is good.
Spark plugs are firing.
Distributor cap is fine.
Even with gas poured into the throttle body it still won't start.
Even with the pedal to the floor it won't start.

Any ideas?
Thought I might have jumped time, but it still turns over correctly.