So....my 2000 has built motor with RSI triple pump system and Paxton and aem. Made 830 then crank about broke blah blah. So engine rebuilt and my tuner is running into the issue of running out of fuel at about 4500 rpm (and 6lbs boost), running lean (12.2 to 12.4). Had injectors cleaned and new fuel filter and checked fuel pump relays (all pumps work). Lost in what to try next. Could it be the AEM unit? We are planning to replace the socks on the fuel pumps to see if that helps. Any suggestions?