Did you make sure the points were sitting on top of a lobe (highest point) on the distributor shaft? If you set the points on the flat instead of the peak you won't get any spark at the plugs.
Also, you can check to see if points are opening and closing by taking a test light and placing one end on the wire going to the distributor from the coil. (Should be the negative side of the coil.) Then ground the other end of the test light to the engine block. Have someone turn the ignition switch on and crank the engine.
The test light should go on and off (may flicker) as the engine spins.
If the light stays on, the points are too wide and not closing, if the light stays off the points are staying closed and the point gap is too small.
You can also watch to see if the points are "sparking" as the engine is tuned over while the switch is on.
