Engine oil leak...

Hi,

I noticed quite abit of engine oil on the manifold, could this be sleeping through from the rocker cover? Thanks

replace the valve cover gasket.
Use a IN/LBS torque wrench and set it to 87 in/lbs.

You can replace it with a re-usable rubber gasket but with either you can only use 2 drops of red RTV at the head plane over the cam seal.

With the rubber gasket you have to replace the valve cover studs from shouldered to non-shouldered ones.
If you do that place a large flat washer over the stud to keep your vice-grips from scratching the head.  Just a couple of taps on the vice grip and they usually loosen.