[Eljaro]

priobe,
in order to get rid of the leaks at the banjos throw the weber gaskets away and get 2 sets each of EARLS STAT-O-SEAL 1/2 and 9/16. With that you are done.
If you insist in AN fittings, JAYCEE makes an adapter for the Webers to AN. Check their web page.
If you have trouble with the electric fuel pump, dump it, get the mechanical one back in, get a Holley fuel regulator (they have one for a max of 4.5 psi) and install a return line from the second regulator output to somewhere before your fuel pump with a restrictor inside( 1 -2mm hole) to drain the pressure away when stopping the engine. It works.