1999 Buick Lesabre Hard Start/Stalls

Engine Performance problem
1999 Buick Lesabre 6 cyl

Car turnsover but has a hard time starting. Sounds like it has trouble getting gas to the engine. Eventually, 8 seconds or so, it will fire sluggishly and start. Idles rough for 10 seconds, then runs fine. I noticed that when it is idling rough the voltmeter on the dash is struggling (10Volts or so) to get to the normal position. Then when it runs fine the voltage goes up to normal. It also stalls when idling at a traffic light. I notice that the volt meter goes back to the 10Volt range before it stalls. Mass Airflow Sensor was recntly replaced. No check engine lights have come on. Any Ideas?