Get some injectors like 450cc dsms for instance, the popular injectors everyone goes with. Hook up a vafc exactly how your manual tells you to. Put your map sensor in stock with no missing link. Program the vafc to (06 06) 4 cyl etc and when you go to correct the fuel in hi and low throttle, use this formula... 1-(stock injector size/450cc) 450 are dsm's size injectors... For example 1-(290/450) = .35 so make it -35 all across the board and you have yourself a decent base map to run on until tuning. Hit me up on aim if ya need more answers...I have some pictures I could show you for a step by step solution.