1 remove and discard leaking gasket and get a new one.
2 when installing new gasket make sure the mating surfaces of the engine block and the cam cover are clean and free of oil. Clean with a rag moistened with carb cleaner or similar solvent
3 witht he replacement gasket lightly abrade both sides of the rubber seal with a 300 - 400 grit sand paper and then clean with a rag moistened with same solvent used to clean engine. (seal is coated with mold release agent used during manufacture, selants will not bond to mold release agent, so we abrade it away with sand paper)
4 apply a small bead of silicone, preferably high temp/oil resistant. orange or red. a small bead completely sourrounding each hole. Be sure to leave a space between the bead and the inside edge of the cam cover, you don't want extruded selant getting into the engine and risk breaking free. (a small bead is about 1/4" wide and 1/8" tall. apply this bead to the engine block and to the cam cover.
6 gently lay the gasket on to the cam cover and press into place. If you want to make it easier to install, apply th eselant to the cam cover and then press in the gasket and let is sit overnight, then before you install the cam cover witht he glued in gasket apply a bead of selant to the engine and lay the cam cover in place and locate your screw holes.
7 torquing, check the owners manual. or pick up a Hanes or Chiltons manual, they should have the information you need. If you cna't find that, torque to 30-35 inch- pounds or 3 foot pounds. Allow the seal to sit at least 4-5 hours before adding oil or starting the engine, preferably 12 hours for a full cure.
if after torquing to 30-35 inch/pounds a leak still exists torque up to but not over 45 inch pounds. any higher and you risk stripping out the threads in the engine and thats not fun to fix.
hopefully that helps, have fun and take your time, it will always come out better when you dont rush
reguards - Jason