use the 4 deg slot & that is 4 crank degrees even tho the squares/triangles & their reference descrip are on the cam gear (which as you know turns at 1/2 the crank amt) cuz all crank degreeing/anything related to that is done/measured in crank degrees on the dampener. when done dial in the dist subsystems: initial/total/springs/the can (if used & I would) IN ORDER. I had a low comp 440/509 MP cam (not a good combo but I was young and learning) & I milled the 906 heads 60 & adv it 4 deg and it woke it up