My money is on valve covers...
You could just play Golf, nice weather, no grease or fumes and when you get good at the game, the ball goes where you want it to go, not the other way around. Golf, that's Expensive.Dont think so engine isn't missing or backfiring and will roast back tires at 35 mph. Just makes faint knocking sound from valve cover made me think rockers may be a little loose I am new at the mopar game but damn it's an expensive one lol