Ford sierra 2.0i pinto cam bearing fitting

i am rebuilding the head on my ford sierra 2.0i pinto engine, i have come accross a problem with the camshaft bearings/shells whatever they are called, the problem is that where they fit into the head on the sprocket side, the oil holes are supposed to line up, it is the same with the middle one, but the end with the cam retaining plate,looks like it doesnt line up with the oil hole, i have another old head for reference, and this situation is apparent on this head also, it looks like its right, but i cannot think why the head would be built up without the oil holes lined up