I have been battling not enough fuel. I have reworked the whole fuel system. My system now is dual fpdm's, dual aremotive 340's,dual bap's and -8 fuel line. All wires are upgraded and pprv are removed. Ok the problem is when data logging the af starts to lean out but the dc doesn't follow it to correct it. it stays in the 40% range. what could the problem be? I replace the fprs with no change.