JD - thanks for the description. I have several of the funky T-Fittings that screw into the oil gallery on the front of the block and can feed the head / rockers with one port and the distributor gear with the other port.
If you happen to run across that Mallory Bronze Gear # - that might save me a wrong guess. The distributor that I am planning on using has a 0.491 diameter shaft.
