360 oil leak at back of intake manifold

On a freshly rebuild 360/410 stroker I have this annoying oil leak that I believe is coming from the distributor hole in the block.....
New Melling oil pump M-72HV pump that I have run for years.....I had 80 PSI at start up (Valvoline 10-30 High Zink VR-1), Had changed all old oil pressure port blocks with new brass 1/8 inch pipe distribution block, nipples
all the normal look at for problem... even made a gasket for my MSD distributor (high tacked to one side of distributor base), new O-ring. I used Permatex right stuff the block front and rear of the intake sealing on a brake cleaned rag wipe for all greases on the block etc..prior to putting down a bead for sealing! inspected intake prior to installing .....all OK or seemed that way........went to great pains for this not to be a problem child while it was still on the engine stand.....Real pain in the boat because the engine sits so close to the firewall in my 72 Duster (Formally slant 6 car) block. The oil pressure at idle is 55 PSI after an extended run time and 180 degrees ....... I have seen 80 PSI on my gauge at start up ......
I have reviewed the oil diagrams/Drawings (1972 repair manual ) .....and the oil port out of the filter feeds the mains, cam bearings and the ,oil pressure port. The only thing that comes to mind is oil is being thrown up somehow towards the distributor in some magical way that could only happen to me.

I am open to ideas ....Throw them at me. Thank you Gary