something that can be done if you don't want to take the distributor apart to find out what it is is to put a 35-36 degree mark on the dampener and power time the engine. basically you can measure 2.25" from the TDC mark in the clockwise direction and place a mark on the dampener. this should get you close to 36 degrees. disconnect the vacuum advance and rev the engine until maximum centrifugal advance is acheived while aligning the 36 degree mark at the zero on the timing tab. then just let the initial be what at is and don't worry about it. hopefully your vacuum advance is adjustable, and you can play with that .