This is our Fuel Map in the Commander 950 software. We can monitor the air/fuel ratio while tuning on individual cells in the map. The software also has a trace function the highlights the cells that you use in various load situations. With the optional wide band we can tune on the fly or log-and-tune off line. We used a pre loaded map from the software and tuned on that for our 502. Once wired and plugged in the engine fired right up with the program that we used.