Petronix Electronic Ignition Any Good?

New update, had my buddy over today, spent about 3 hours on the car. We reinstalled the Pertronix dist., rechecked that we had power from the ignition switch, for crank and run power. Rechecked the firing order of the spark plug wires in the cap, car would try to start, tried advancing/ retarting the dist. would really close to starting, but could not move dist. far enough. We did have timing marks on engine to 10deg. before doing all of this. We finally found the sweet spot to get to run, BUT it would only run for a few minutes, then run rough then would just shut off. We would retry with a jumper wire from the + on the coil so 100 % has 12 volts, the car would still run then die out/stall. We also had a timing light hooked up so we could set the timing and as the car would start to act up the timing light would loose its light, like it was losing spark, we both feel pretty sure it is not the coil, but the Pertronix Ignitor II unit in the dist. have a new one on order.