Dean,
Here is a timing map for a 87 NA. Also shown is a map from a performance chip. I find the car runs weak where the bump is. I arrived at this information by comparing the .bin file from a performance chip and a stock bin. I simply converted the hex in the map to decimal values. Not sure if the numbers are actual timing in degrees. Seem high to me. I also have similar information on the fuel map. I was busy with all this, and even made a chip to test. I then found myself caring for my terminally ill dad (about 4 years ago). My work now, looks Greek to me. I have an excel file I can share that shows it all.