I have an 02 mustang gt auto with 200000 miles on it. The engine still runs strong doesnt feel sluggishat all . I do wot every once in a while when little ricers that keep taunting me and I always pull ahead but I Havent done wot in a while and when I do accerate in N or floor it not all the way though I smell something wierd afterwards. From my drivers window when its open. What could.it be? and ive checked my exhaust pipe and Kinda get that smell of unburnt gas.