also plugs 3&4 are black and oily
and I'm suure I must be getting over pressurisation somewhere as there's oil pissing out of the side of the block somewhere but I see no cracks or holes. (can't find the leak spot either)
if the compression is down on 2 cylinders that are at the side of each other its 9 times out of ten the head gasket. as for the oil, as u stand in front of your car and look at the engine is it in the middle of the block behind the exhaust manifold if it is then this will be the head gasket aswell as this is where the oil way is. hope i helped
Forget the oil from the block for now, thats not important. You are going to have to have thehead off one way or another, so that is the first task. Do that then let us all know what you find and we can help from there.