Was the car running before installation of the ignition? If not, first check fuel, compression, and wiring according to the procedures outlined in your vehicles shop manual.
If the car started with the points, but not after installation of the module, check that the rotor was modified per the installation instructions, re-installed, and indexed correctly and that the battery ground cable was re-attached. If the distributor was moved, the timing may be too far advanced or retarded. Set the timing statically, as described in the instruction sheets.
If this looks OK, use a test light to verify there is voltage present between the coil (+) terminal and ground, with the key in both the start and run positions. Loss of voltage may be due to blown fuse, faulty ballast resistor or improper wiring. With the key in the run position and the engine stopped, check that voltage is also present where the point wire connects to the module. This will verify continuity though the coil primary and the point wire.
Next, connect one lead of the test light to battery (+), and touch the other end to the point plate to verify continuity to ground.
If all this checks out, the coil or module may be suspect. To test the module, remove the point wire from the coil (-) and attach it to the test light. Connect the other end of the test light to +12 volts. The light should blink rapidly while the engine is being cranked, and go out when the engine stops. If the light does not come on, or stays on when the engine is stopped, the module should be sent in for further testing. It's worth noting that a voltmeter will not provide the correct results, you must use a test light.
If a bad coil is suspected, it should be replaced or a live spark test can be performed.
WARNING! The coil generates extremely high voltage, which can be lethal. For safety and convenience, use the test procedure outlined below, or as described in your shop manual. Do not perform this test if fuel vapors or any combustible materials are present.
You will need to purchase a calibrated standard ignition test plug to perform this test. These are manufactured by the K-D Tools company (K-D part# 2757) and are available at most auto parts stores. This plug forces the coil to generate a known voltage, providing an accurate pass/fail evaluation.
Turn off the ignition switch. Remove the high voltage wire from the coil. Remove one spark plug wire from the car and attach it to the test plug. Insert the other end into the coil. Clip the test plug to the hood hinge on the drivers side.
Crank the engine over. The spark should easily jump the gap and will vary in color from blue (strong) to yellow (weak) depending on the output of the battery during cranking, as well as several other factors (you may need to do this test in a darkened area).