GM 3.8 Series I top end oil leaks

[D60]

I've got an '89 Buick Electra Park Avenue with 3.8 and a whopping 57k miles.

I can see the valve cover gaskets are leaking but I'm wondering if the intake also regularly leaks oil on these?

There's a good bit of grime in the valley, but I don't know if this is likely just valve cover gaskets or something more? I understand no one has a crystal ball, just asking about common problems and likelihoods.

Standing at the pass fender here, the firewall is to the left and the arrow is part of the intake valley. Er edit: I guess firewall is bottom of photo

 

[ls1mike]

Valve cover gaskets are common, those years the intake will leak but not like the newer ones. Having said that at that age it maybe time to replace the valve cover and intake gaskets.