ok i checked everything for maintenance wise and all i have to do is a oil change. I haven't found the reason why the engine makes noise but i might pull the valve covers off and check the valves. If i had a stem seal leak would my spark plugs show it with burnt oil?.

My timing was off by 6 degrees and adjusted it properly. I still have a rough idle and I'm not sure what causing it.

I found out that my air filter was pretty dirty and had water on it due to my last trip offroading. So im gonna change it tomorrow and see how my fuel mileage changed.

Justice, how big of a difference did you notice with the new o2 sensor?