help! please.

So i was on my home from school today dropped two kids off at a house. actually got out went bathroom and came back with it still running. Then left dropped off another kid then as i turned onto my street the alternator dial was dancing and next thing i know the car stalled out. I was still rolling put it in neutral fired it up and kept on my way. pulled into the driveway and i needed to stay on the gas to keep the thing running by staying on the gas. It conks out on its own like the idles too low but! it was fine a few minutes before when i was dropping off the kids. What the F%#@. Me and my dad thinks its the voltage regulator maybe? i havent a clue. its not vapor lock cause the carbs getting plenty of fuel. all hoses are hooked up and accounted for except one but i dont recall it ever being there. (me and dad dont know what the hell it is its a black cylindrical thing next to the radiator that says purge, carb bowl, and fuel tank(picture below)). couple days ago i took the dart on the highway and when i got home this is when i noticed the motor vibrated the car then stalls out. then the day after it stalled out once then its been fine as it may seem. then this. please someone make sense of this. like i said it ran fine earlier then on the way home it **** the bed. Video and pics (i will upload video when i find a way how :tard:). When it stalls its like barely alive shaking alot then cuts out. :-(









Thanks

http://s1218.photobucket.com/albums/dd416/DartIan29/?action=view&current=0509111447.mp4 <- Video