Got all new parts; elbow, gas line, fuel shutoff. Followed most of the great advice I got on the board (and I mean that sincerely, thank you). AND IT STILL LEAKED; BADLY. Took the fuel line totally off again. Noticed that the flange on the fuel line that goes into the elbow didn't look even. Filed straight across the flange and re-installed. Leak was still there but way better. Filed some more material off the flange. Re-assembled and NO LEAK. Disappointing that new parts are not up to the job. It was the flange all along!
Thanks everyone for the great input. I learned a lot on this one.