okay so ive been driving the car around town just cruising for bout 45+ minutes without a problem. so i stop to get something from sonic, so as im leaving i start to take off and it wont, it feels like im in third and try to take off with just the clutch, and i hear it idling really rough then it stalls, i turn the key and it screeches loud, a couple more trys and its on, i stop waiting to pull out and car stalls again and this time it wont turn on, after 2 minutes of blocking the exit it finally starts i make it another 25 feet before it stalls another time and same damn thing again, i get home finally(thank god i live close by) and open the hood, rev the car and all i hear are pops and the rough idle, my moms bf takes a look at doesnt know whats wrong but he mentions something like he can hear air going into somewhere but cant find it! im not that educated with cars so i dont know whats wrong. any help would be greatly appreciated? please (95 mustang gt, 81,xxx miles, small cam i think its a e303, new alternator,battery,plugs and wires, if that helps any bit)