[tor-relays] Raspberry Pi + Raspbian GNU/Linux 8.0 (jessie) + bind errors

I just installed tor on a Raspberry Pi 3 Model B and can't get a relay to start unless I sudo. When I attempt to start tor as a non-privileged user I get a permissions error: Opening Jan 05 18:33:35.929 [notice] Opening OR listener on 0.0.0.0:443 Jan 05 18:33:35.930 [warn] Could not bind to 0.0.0.0:443: Permission denied Jan 05 18:33:35.930 [notice] Opening Directory listener on 0.0.0.0:80 Jan 05 18:33:35.930 [warn] Could not bind to 0.0.0.0:80: Permission denied Ideas on best method to bind these ports to tor on startup as non-root?

Thanks