Once you get the autoprom work log some data based block learn and itegrator (long and short term fuel control) 128 is perfect so you some where
around 122 to 134 on your block learn reading. In your data is it going closed loop where the o2 sensor crosses over stoich or high to low. What o2 sensor are you using, is it heated or not.Are using Tunerpro for your edit software.
What kind of vaccum do have at idle.
If you want send me some data and I can get you to a starting point.
Terry
rosesandwrenches.com