Usually 3 notches from the factory on the pulley are for 0º or TDC, 7.5º BTDC and 10º BTDC.
If you are doing it for the first time on a new-to-you engine, you would be wise to pull the cap on the distributor and locate a line marked on the metal rim. If the nose of the car is 12 o'clock, your mark will usually be around 5 o'clock. Then you pull the valve covers and spark plugs. Place the eraser end of a pencil into the plug hole of number 1 and rotate the crank until the pencil is at it's highest point, AND the mark on your distributor lines up with the rotor. THAT is TDC, and one of your pulley marks should line up. Trust what you just did, because that is accurate, no telling whether the pulley is factory or frm some other model engine. NEVER trust the PO!
Yea thanks, I did this and it's at TDC at the far left mark . So with the mechanical Dist ( JF4 0231-173-009 ) I need to make a new mark left of this to have it read 10deg ATDC to set static timing ? I am guessing the other two marks are for if I had a vacum advance dist?