I purchased some gasket remover, but found that brake cleaner was by far the best way to go along with a toothbrush or non-metal bristled brush. Verify that the grooves on the cover are completely free of oil, water, and other foreign material. Install the gasket into the cover. Apply high temperature silicone sealant to the corners where the cam bearing caps and crank angle sensor cap meet the cylinder head. Put the Valve cover back onto the crankcase being careful when aligning each piece.
Hand tighten the head cover bolts.
Using a torque wrench, tighten the bolts in the order shown. Reconnect all electrical wiring and battery. Run the engine and check for any possible leaks. Hopefully there aren't any, and if not, you're all set.