on the pertronix you replace the point plate(real easy) when updating the delco type distributor, the instructions are easy to follow. While you have the point plate off, check the advance weights and springs, make sure they aren't broken or stuck, spray them down with a little lube(CRC656), but not too much. Check voltage at purple wire, it will run on less than 12 Volts(its in the instructions), but I allways un did the wrap on the harness, followed the wire back to the resister loop, cut it out and replaced the wire to the coil, I figured I'd eliminate any future issue with the resistor wire. Check the resistance on the coil, and check the timing when you're done(4 degrees btdc)
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Linear Mode
