What's your opinion on the slack in this 318 timing chain?

not to change the subject. But what do the dots on the crank gear mean looks like there's one at 9 o'clock /10 o'clock /2 o'clock. which dot would put the cam in at 102* ? thanks for the help.View attachment 1716330431
It's not that easy. Because of machining tolerances, you must used a degree wheel.