There's a couple of pinpoint tests I found for no-spark. 

Check for voltage to the coil. Disconnect the 3-Pin distributor harness connector. With the key ON, measure the voltage on the BK/PK wire, it should be greater than 10 volts. If not, you're supposed to check that wire. 

Check ignition coil resistance with the key off, with the 3-Pin harness connector disconnected, and checking on the distributor where it connects, there are 3-pins, you want the two outer pins. Measure the Primary coils resistance, positive to negative, resistance should be 0.58 to 0.86 ohm. Measure the secondary coils resistance, from Positive to High Voltage, should be 1.15 to 18.5 K ohms. When looking at the housing where the connector fits, with two raised locators on top and flat across the bottom, the positive pin is on the left. The High Voltage point is just above the connector location and it's sticking up. Here it says if you fail these resistance tests to replace the distributor.