HasABetterSN

Hey guys - so today I cranked up my Mustang, and it was making a weird cyclical sound, so I immediately shut it off. I turned it on again with my roommate there to take video (I tried to get it on video, didnt turn out well), and it had a very low, rough idle. So I shut it off again, and cleaned up the IAC a bit, then turned it on again. This time the idle was higher than usual (~1100 RPMS), and the garage started smelling like straight gasoline. I looked around and there were no drips on the ground. I'm scared to drive it, do you guys have any clue what it might be?

edit: The CEL is not on.