On one rotation, when the 0 mark on the damper is lined up (with the 0 mark on the timing cover), #1 is ready to fire. After the next full rotation, when the 0 mark on the damper lines up, #6 is ready to fire. And so it alternates back and forth between #1 and #6 being ready to fire after each full rotation aligns the 0 damper 0 mark with the 0 mark on the timing cover.
That is why you have to determine if #1 or #6 is ready to fire by looking at the valve positions of #1 and #6 when the damper 0 mark is lined up. ONLY after you have determined if it is #1 or #6 ready to fire, can you properly line up the distributor rotor. Go back to posts 6 and 16...(Lots of 1's and 6's here LOL)
