I pulled my distributor to clean and lube it, and put in new points and condenser.  I had the rotor pointing to the #1 cylinder wire when I pulled it.  Now I am trying to find the timing marks on the flywheel to set everything correct.

The problem is finding the timing marks.  I am trying to do this alone, so turning the flywheel and watching the through the site hole is a pain.  Any easy ways to find the marks, or at least control a slow steady turn of the engine in order to find the marks?

I recently had my flywheel off and outlined my timing marks with white paint....and it is still next to impossible to see!  On top of all of that, your flywheel may be installed 180 degrees out and might not be correct for timing.  I have always found looking through that little hole trying to find those marks to be very difficult.  Here is my advice.

1.  Follow Tim's advice and remove all the plugs and use a ratchet and socket to turn it over.
2.  Put your thumb over #1 cylinder and turn the motor over until you feel air pushing out of the hole and almost all of it is pushed out.  You may have to try 2 or 3 times to get the "feel" of when all the air is almost out.  This will place the piston close to top dead center (TDC) on the compression stroke.
3.  Pull the cap of the distributer and verify your rotor is pointing to #1 cylinder wire.  Then loosen the distributer retaining bolt and turn the distributer where the points are just about to break (open).
4.  Gently tighten the retaining bolt and try to start the engine.  If the motor is hard to start or hasn't been ran in quite a while, I would recommend you pull start it.  This will save wear and tear on your starter and battery.  It will also let you spin the motor a little faster to make up for your timing not being "exact".
5.  When you get it running, stick a timing light on it!!  In my opinion, this is the most accurate way to set your timing!  (Assuming you have the timing marks on your timing gear cover...)

I would also recommend replacing your cap, plugs and wires and making sure you have a good battery and good grounds.  Remember, these engines are basically large air pumps.  If they have FIRE, FUEL and are IN TIME they should start! (even though they sometimes don't feel like they ever will!  )

Good luck!