1. these are actual crank angle as the description at the bottom of the screenshot claims. IF so that means NEG for intake and NEG for exhaust are both referring to btdc exhaust.
2. what I think it actually means is that if I set the parameter to -20 that means the cam itself is requ0.esting to retard -20 degrees and open the intake valve 2 degrees later than 0.
PS if anyone has info on stock 2018 intake and exhaust camScreenshot (33).pngScreenshot (32).png