As you'll notice I just put a new timing belt and tensioner plus waterpump in my '95 GL.
I took the valve cover off a few times and ruined the new valve cover gasket. I was surprised that there is a lot of oil pressure under the valve cover because oil was squirting out from two TINY tears in the gasket. There must be something going on under the valve cover back by the #4 cylinder injector because that's where the leak was.
I'd look back along the back of the head gasket especially on the back right hand side of the engine (cylinder #4 is to the right.)
It is really pretty easy to install a new head gasket.
They cost around $22.00 and the job is easy enough.
Mine was leaking before I did this job, too.
DB