Thanks again Frank. I'm going to lean toward having a valve job done at the machine shop...do you know if the valve guides come with a head gasket kit or would I need to purchase separately? I plan on a FelPro gasket set and it says it comes with "valve seals" but not valve guides.

Also, any advice on whether to replace the head bolts too?

Grand Canyon State is my home, stock 1991 Montero is my home on wheels.