Timing Mark change

Do exactly what 67dart273 says, ask me how I know!! Make sure you get the correct timing tape for your engine.
Here is something to add confusion....LOL any size circle is 360*. So if you get the circumference of your circle(damper), btw the formula is circumference=3.14 X diameter. Once you have circumference, you can divide that by 360 that gives you the amount of degrees per inch. Good luck