you need to set your maf and injector setting before you start the car. set the maf to z32 (vg30) and set injectors 1-4 for your larger injectors. correction should be 740cc / 370cc * 100 = %50 so enter +50% for injector correction. for the lag time you need to enter the difference between your injectors and stock. i dont know lag time on 740’s so ill use mine as an example .71-.58=.13 (.58 is stock lag time according to apexi) so i entered +14 (can only enter even numbers). your going to have to search for the lag time for your injectors. also before you start the car turn off the boost control function (unless your using it) which is found in the “etc” menu
just set it to vg30 and use the default setting for now. you can fine tune it later if needed. for the lag settings ask happy240sx what he used. i think he was running the larger dw injectors