Tappster if you havent found the leak yet, it could be coming out of the distributor seal. usually this seal is just an o ring.
oil leaks can be maddening as you know, there's several ways to find an oil leak, some simple some complicated. the first way is clean the engine like brand new, drive the car and wait. You can also dust suspected leak areas with talcum powder (naturally this only works on a clean engine).
Another way is to buy a dye kit and find the leak that way. Here are some other methods