If the timing chain has jumped, adjusting your distributor won't fix your problem.

Pull that #1 plug again and rotate the crank clockwise, feeling for compression in #1. Once you feel compression, bring the mark to just before it lines up with the timing tab, say 6 BTDC. Then pop the distributor cap and see where the rotor points. If the rotor is in the right place (around 1 o'clock) but the window in the cap is not, loosen the clamp at the distributor base and rotate the distributor body until the window is around 8 or 9 o'clock.

If the rotor is not in the 1-2 o'clock area, the distributor may need to be pulled and reset.

Wired counterclockwise is correct.

Yes, the timing mark will line up in the correct position and 180 degrees off (#6 firing).