Find My oil leak?

[Davemotohead]

396 BB with less than 1000 miles on it,,Runs perfect but has a pesky oil leak I cannot seem to pinpoint,,it seems to drip off the starter nose cone and get on the ring gear and fling everywhere,,,BUT! Its not leaking from the Valve cover gasket,,not the intake or distributor base,,the center of the flex plate is dry on both sides so not a rear main seal,,its only on the ring gear itself,,the rear of the block is dry,,belhousing is dry,,oil presure gauge line is dry,,galley plug and cam plug on the back of the block is dry,,everything seems dry but the starter nose and ring gear on the flex plate? Any Idea's??