[paintballer317]

ok, so major help needed... i figured out the problem, it was a vacuum line, i got it to run good but it had real black smoke. then we let it run for a bit then shut it off and realized i forgot to put the air box on. so i put it on and when i tried to start it again, it did the same as before. one chug then dies. i checked the vacuum lines again and they are as i left them, none were unplugged or anything. so im confused. what could be causing the black smoke? and why did it just run but when its warm and i hooked up the mass air flow sensor it wont start? i didnt get to the timing yet.