Engine Died on 1st Ride Won't start

I got home from work and installed the new coil and ballast resistor. The car fired right up. Is whatever happened to the first coil going to happen to the new coil? I took the same ride again tonight then let it run for about 15 more minutes with no problems. I'm going to get more familiar with my multimeter and begin learning how to troubleshoot under the hood. All advice is greatly appreciated! Thanks FABO.