The wire you have in your hand is for the high blower relay for the a/c heater system.has nothing to do with the ignition. You have either not set the points to the correct gap or did not install them correct. Connect the dwell meter to the negative side of coil, crank the engine. Make sure you have the meter set to 8 cylinder. You should read, while cranking, 30 degrees dwell if not reset them. Also make sure the condensor is tight.