Torque specs

What is the torque supposed to be on my 98 camry 4cly valve cover nuts-4 of them and are 30 mm.?Ive heard some say its 33 and others 17.It has about 175k on it and a small leak at gasket from nut being a little loose.
If i decide to replace gasket is there anything inside i may want to check when cover is off?
Any info is appreciated

Torque is 17 ft-lbs (204 in-lbs). Tighten from the inside out in 70 in-lb increments. Check the torque again after a week or two of driving. The reason for the confusion is that some manuals have the 33 ft-lb number as a misprint. I don't know where they get that number, but it will crack your head cover as others on this forum have found out.

See the discussion in this post: http://www.automotiveforums.com/vbulletin/showpost.php?p=5650006&postcount=73

Check the PCV valve while you have the head cover off. Also, be sure and clean off all form-a-gasket still attached to the head or cover, and all gasket surfaces in general.