BUSTED!
 

Someone left the belt go a bit long...then noticed their car really didn't run..like, at all!

Youch!

Here you can se how the balacne shaft belt is wedged between the cam-gear and the
housing....

And here is the head....notice some bent valves?  Like FOUR+FOUR!
Now that takes some effort!

About $1500 later the engine was happy again.....