A flooded cylinders (with fuel) can cause your issue as well, we call it cylinder washdown, disable the fuel pump or disconnect all 4 injectors and crank it for a few seconds with the spark plugs removes, then pour abut two ounces of engine oil in each cylinder and let it sit for a few minutes.
Then crank it again for about 10 seconds and recheck compression, if it rises, it was washdown, if it doesn't it may be cams off time.
BTW, I don't thing it has bent valves, if that was the case it would have zero compression. |