Looks to me like you just need to rotate the crank slightly counterclockwise to line up the dots.
That set appears to have 3 keyways: standard, 4° advance, & 4° retard. Make sure you're looking at the right dot or mark that should be used for the keyway you used.
Assuming the dots/marks are in the correct place, always move the crank dot/mark to 12 O'clock. Then rotate the cam til you can line up the cam gear dot with the crank gear dot/mark. It's easier to line up, with the dots/marks at 12 & 6, rather than 12 & 12, because they are closer together.
You just have to remember that at 12 & 6, you're on the #6
compression stroke. Rotate the crank 360° & your dots/marks will be at 12 & 12, and you'll be on #1
compression stroke. This is because the crank turns 2 revolutions every time the cam turns one revolution.
Makes no difference whether you line 'em up at 12 & 6, or 12 & 12, as long as you position your #1
plug wire on the dist cap near TDC of the compression stroke of #1
cylinder. Then, of course, arrange the rest of the wires in the correct firing order in a counterclockwise direction.
I like to line 'em up at 12 & 6, to install the timing set, then rotate to 12 & 12 before installing the timing cover.
But, some like to put a finger in the #1 spark plug hole while turning the crank. When the compression tries to push the finger out of the hole, you know it' on the compression stroke. So, assuming your timing mark is on the balancer is in the correct location, you can just rotate the crank to where that mark is lined up with zero on the timing tab.
When the timing mark is on zero, I like to rotate the dist to where the rotor is pointing just past #1 wire terminal, in a counterclockwise direction. Most guys seem to like 12-15° ignition advance, at idle. Since the wire terminals are 45° apart, you don't want to go over 1/3 of the distance to the #8
wire terminal, since 1/3 of 45 would be 15°. Somehwere just short of 15° should easily start the engine. It will at least put you in the ball park.
Some guys will just fish around, by rotating the dist while trying to crank. I've done that too. But, I now prefer the method described, especially for the initial start up of a new engine.