Kia Sephia Engine Runs Rough

I Ran Off The Road A Couple Weeks Ago Pulling Out Of A Driveway And My Back Tire Hit A Dip And Knocked My Exhaust Loose Where It Slips In....

I Drove About 30 Miles Or So When I Got Home I Checked My Oil And It Was 1 Quart Low On Oil So I Drove Over To The Store And My Car Smelled...

95 Kia Sephia Gs 1.8 Dohc Runs Rough. 267000 Miles - Replaced Plugs. Still Runs Rough.