I've checked with my own pics from the same valve cover gasket repair that I did about a month ago. They are indeed bolts that thread into the intake manifold and through the air intake chamber from above.
Here's my link:
http://www.yotatech.com/showthread.p...e+cover+gasket
If you've got any studs left, definitely try a stud remover before attempting a more drastic approach, like applying heat or tapping after drilling out the stud. If you do use heat, make sure you've got a fire extinguisher nearby. Again, I would be very hesitant about using heat under the hood, especially when you've got the cold start injector removed, grease, oil etc...
__________________
'95 4WD 22R-E 4Runner, 5spd, 205k kms, 4.56 gears, extended diff breather mod, bilstein shocks, Aisin manual hub swap, 1.25 rear coil spacer, 32" BFG's -- my DD
|