Please help!! no oil pressure after oil change!!

With the filter off there is NO restriction at the pump outlet. One of the filter ports IS the outlet of the pump. This is the "easiest" condition you can make for the pump. If it won't prime on the starter with the filter removed, then the next step is

1.....Check for gear / shaft damage. Some shafts can spin the gear on the shaft, and sometimes the allen can be stripped in the pump or on the shaft. Unless the engine is gummed up, you can walk the gear "up and out" of the cam gear with a screwdriver, then get ahold of it with coat hanger, etc "tools" annd pull it out.

2....Next try to prime with a drill, keep in mind it turns CCW on B/ RB engines

3....If that won't work, I would double triple check "what you put in" for oil ( was it REALLY oil?) and how much and what the level is.

4....If 1--3 doesn't give an answer, time to pull the pump, inspect gaskets and O rings pull the pump apart.

5.....And if 4 fails, you have a cracked pickup tube One last step before you get this far is to dump a "whole bunch" of extra oil in the pan and see if it will prime. And that too, might suggest a cracked pickup.

ARE YOU SURE about your pan capacity? I think my old 70 440-6 was seven quarts.