This is my work chart for gm 846 cam.
Red and blue is total open duration at exhaust and intake.
Yellow and green is the duration at 0.05 lift.
I chart the data to find the cam overlap and decide how to tune it.
I couldn`t get a complete cam data for stock b-body cam, and don`t have a reference point. Some experiments will be needed to figure what is the best approach to tune end of injection.
Chart is from stock b body. The red line 4 is injector open time.
As you can see it closes exactly at 270 degrees. As it is at b-body and corvette calibration.
I am sure the pcm counts $10 for 1 low resolution pulse, and the space between pulses is divided by it. And you get 90/16=5.625 degree resolution. I hope it is pretty acurate but will have to be verified.
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