How hard is it to change valve stem seals on this? With the head on! on 1997 Saturn SC1

It has lots of blue smoke! Plus this really puzzled me! Ran a compression check. While cranking the needle in gauge went up but wouldn't stay. I can't believe all the cylinders are 0 it runs to good!

Asked by for the 1997 Saturn SC1
to change valve seals with on you will have to remove spark plugs and use compreesed air to hold up valve before changing seals I would recommend taking it to a shop that has the right tools for the job
No problem have done that before! Just thought might be something I should know before I start!