If turning you carburetor over to inspect it ruined it, then thousands have been ruined but just didn't know it.....

Make sure you bypass or replace the resistor wire from the ignition switch going to the coil or you will have all kinds of firing problems. If you check the voltage at the coil with the switch on, without the engine running it will read 12 +- volts, but when you start the engine and put a draw on the wire it drops to 6/7 volts. The Pertronix ignition must have 12 full volts to work. I know this from several months beating my head against the wall trying to get my truck to run right.