Fuel Pressure Regulator

2000 Silverado 4x4 1500 with a 5.3, Where is the Fuel Pressure Regulator located? Please help!
Thank You
Garry Muir

Well on my 99 it is on the driver side fuel rail close to the middle it is a small cylinder looking device with a vacume hose connected to it.

Hey, thanks for the info I really appreciate it, It was exactly where you said it was and it also fixed my problem.
Thank You
Garry Muir