806 Head Gasket Change

[Rstra]

I have a Peugeot 806 1996 1.9 the old diesel and I'm currently trying to change the headgasket, proving to be hard work.

At the moment I am trying to get the inlet manifold off, engine is in the bay, mountings off, I've undone 12 nuts off the manifold but it's still not loose enough, it flexes easier now but feels like its still being held on by a couple of nuts. Can anyone lead me in the right direction?

Thanks