Having recently replaced my 6 AL box with a Digital 6AL, and  as per the instructions I wasn`t surprised to find my timing went from 36* down to 32* I called MSD tech. and he tried to explain it to me , that the new box using digital instead of analog it is processing  quicker.I am using a MSD ready to run distrubtor for the Y-Block.  It is kind of hard to compare performance in this hot and humid weather, but the car seams to be running about the same as last week.12.70`s 106 & 107 mph.My confusion is am I doing the same on less timing or what . I intend to bump it up some , but I just wanted to hear some thought`s or experence on this.    Thanks in advance   Harry Hutten Jr  1960 Mercury 3750 lb`s  337 cu Y-Block