1. Take out the #1 spark plug.
2. Bump the engine until the #1 piston reaches TDC on the compression stroke.
There's a few ways you can do it. Stick your finger in the spark plug hole and get your friend to bump the starter until the compression stroke hits and it will blow your finger out of the hole. Since I work by myself, I have to bump it until I hear the "gust" or momentary spout of air sound come out of the spark plug hole.
3. Next (and this is not required, but this is what I do) is stick a screwdriver in the spark plug hole and ensure that the screwdriver does not go down into the cylinder and is touching the top of the piston.
4. Next, look at the timing marks on the harmonic balancer to make sure it's near or on the bracket that is used to set the timing.
5. Next, indicate the "1" that is on the distributor cap and position the the tip rotor button where the "1" will be after you put the distributor cap back on.
Note: You may have to insert and remove the distributor a few times to get the tip of the rotor to line up. Also, you will have to turn the rotor button a little bit forward or backwards from the "1" because it will turn once the gear on the distributor touches the camshaft. But once you insert the distributor, the tip of the rotor should be EXACTLY under the "1" on the distributor cap. Be patient with this, it takes a few tries to get the hang of it when sticking it in and removing it to set it.
After this, put the cap on, the #1 spark plug back in, hook up everything else and it should fire right up!