Doesn't sound particularly safe. Not very unsafe, but then again, not everything is perfectly safe, either. I really wonder about this "project" -- what is the whole assignment? What chemical concepts will you be answering, when you do solve the problem? I doubt they give assignments in the forum of: "Find something more or less dangerous and do it, +5 points if maimed, +10 if seriously maimed." You're going to have to state a problem, what you intend to do (you did that part, matches, sulfur and petrol), and how your answer works. Write out those parts for us, so we can see where you might want to change the experiment.