Heres a somewhat related question about cam timing...

If I have an adjustable timing chain with multiple keyways on the crankshaft gear, and they are marked 0, +1, +2, +3, -1, -2, -3, etc...

Lets say I have a lobe separation angle of 106*

If I set the timing gear so that it is in the +2 slot, does that mean I am advancing the camshaft 2 degrees so that its now 104* or does that mean that I am adding 2 degrees to the 106* number? 106+2=108?