Timing gears, no chain.
Extremely unlikely the cam is out of time.
But if you want to check, pull the valve cover, set the crank at TDC. Watch the #1 and #4 rockers. While rocking the crank slightly back and forth, you will see which set of rockers is in the overlap position, when the ex is closing and the in is opening. Split the difference when both are closed. The crank should be at TDC.