It didnt go as planned, new motor break in.

I fel your pain Phil. After 10 -12 years rebuilding my 69 i finally get a strong 360 in the car.. Couple excellent runs down the road and the lost oil pressure. note to self "cover everthing within 100 feet when sandblasting". Anyway found 360 with 727 from little red express dropped it in as bought since I had seen it run a few months earlier. Works great now other than the notorious Mopar lifter noise. LD 340, Carter afb long tube headers 2.5" exhaust, 3:91 rear diff.
As for your oil leak if it is that bad, couple of minutes running and inspecting from under neath if lucky enough to have hoist should find real soon.