When I am trying to cruse at low speeds like 25 to 30 mph the engine seems to be hunting. I noticed that my advance around that area is different for each of the cells. Do you think if I level them out that would help or should I be looking somewhere else? I tried to set them more consistent but that did n't seem to help. I ran another data log and found that it is running a bit lean around 20 A/F. I wonder if I turned my IOT down (negative) a bit to much or Ishould increase the TOG to richen the higher RPM's. I did notice quite a bit more repsponse and power when I set the IOT to -0.375. The reason I lowered it was that it was running a bit rich through out the entire range. As I mentioned in my previous post. I know it is not the decel as that is set low enough at about 24 kPa and the car idles at 33 kPa.

Mine surged a littl too.I made sure the ve table in that area was not making big jumps into diffrent cells.I also had to run
a little richer to completly eliminate it.

Sudden changes in advance will definately cause surging. Our default table has a pretty big transition in an area that on some cars you won't even notice, but other can be a big problem when cruising. Try smoothing it out and see if that takes care of it.