My girlfriends car has just developed a problem. It takes longer while turning the key to get the engine started, and once it is, it sounds like it's going to bog out. My girlfriend says she's sees blue smoke from behind the car. She says she smells gas. Generally the car is running like shi+. The fuel filter was replaced a couple years ago. All this crap just stated a couple days ago. Anyone got any ideas as to the problem?

Thanks