due to the fact that you have a single cam motor, the passenger side is sealed with an o-ring on the dizzy & the driver side is sealed with a larger o-ring style seal that is around te cam it self & placed in a groove in the head & valve cover, they usually don't leak, in the event that they do, i would just clean the surface & use some high temp rtv! Unless it is leaking on the center portion, then the rtv won't work & you will have to actually replace it. You will most likley have to either take the cam gear off or take the cam out of the engine to do this.