when I degreed it in it was 1 degree advanced 105 ICL insted of 106 ICL. Then as I have been lurking around the net I see that a double roller is out there so I buy one and get it here.
funny, first thing i thought was "ok, slip the sprocket / cam to get where you need". this does bring up the question of whether you want to install the cam "straight up" or pick up a little adv / retard.