Cranks but won’t start!

69 440 Road Runner with mopar eletronic ignition, Started up and let run for about 5 min. Shut it off for 5 min. Now it cranks but won't start. Good battery, Rotor turns, no spark from coil wire. have replaced the ballest resistor, ecu & coil with spare parts that I know are good, checked the magnetic pick up coil [ 357 ohms]. This car is usually very dependable. Other than maybe a broken or shorted wire somewhere, is there anything I might have missed? Bob
Author: BOB P