This OBDII car came to us with a supercharger system installed. It had drivability issues and was lean on the top end. We installed a custom version of the laptop programmable PSC1-001 and 30 lb/hr injectors. Part of the custom PSC1 is a special circuit that maintains the correct mixture for initial start. We tuned the car for the correct fuel mixture in the light load region using an OBDII scan tool. The lambda meter was used to keep the wide open throttle mixtures between 12.0:1 and 12.5:1.