1974 D300 360 fresh rebuild will not start

Re this photo:

58103509_n-jpg-_nc_cat-109-_nc_sid-b96e70-_nc_ohc-6w-qrihugsyax-ijd_u-_nc_ht-scontent-sea1-1-jpg.jpg

IF the dots are actually lined up that is EXACTLY where they will be for no 1 to fire. But the rotor is COMPLETELY OUT OF THE PICTURE because the dist gear can be "anywhere" and therefore the rotor.

You align the cam timing FIRST and THEN perform ignition timing.

As said ^^ You rotate the crank 1 turn they will likely line up. With the crank mark at 12 and the cam at 6 o'clock NO 6 cylinder is ready to fire. It is done this way because the marks are easier to line up "dot to dot"