I'm using the stock map sensor. I was using a missing link with it, but it was causing my car to run poorly. the check engine light still came on even with the missing link so i removed it. My car is under 11 pounds of boost, which is the limitation of the stock MAP sensor.

I'm using a vafc for managment and was tuned with in the last year. I have an air/fuel gauge that I know is inaccurate, but it still gives me an idea of my mixture. Althrough my accelration it stays just above rich, which is how it was tuned.