I did mine yesterday...NOTE...when removing the valve covers make sure no HARD pieces of old gasket break-off and fall somewhere they shouldn't! Pull the old gasket set-tabs off before pulling the cover...don't want one to get inside the head >the oil drain holes in the back of the head are quiet small.
My original rubbers were rock hard and easily cracked.
Fel-pro offers a replacement 'rubber gasket kit" # VS50247R 1988-1994....$8 bucks at Advanced Auto.
The drivers side wasn't too bad, the passanger side can be a PITA I had to remove my fuel filter etc to lift it off. Also the rear bolts are a pain...had to lay over the engine to get them out/in.:thdown:
While visiting the inside, suggestion...grab each rocker/valve to see if the springs/valve/guide's are all tight. Idle engine to observe oil pumping out all push rods...also...while ideling observe all rockers are lifting the same height.
When installing, use something like Hi-Tach on the cover side gasket to secure it to the cover when installing, I would leave the bottom/engine side of the rubber dry >don't need it slipping out.
Nice a clean inside...