Hey guys I have a 2000 GMC Sierra 1500 with the 305 motor.... I been having problems with it surging as I speed up... and when I come to stop lights it wants to stall if I don't keep the idle up... but once I'm stopped it will idle just fine, but will often want to die and surges between 1,000-1500 Rpms... it has a new fuel pump and filter. It also quit for like a month but now it's back any help would be great!!