I've got a 74 that's been de-smogged and still has the Cali distributor. 1F motor. I had to sand away some of the sleeve of the magnet that goes on the shaft under the rotor to make the distributor cap seat into the clips. Just found out today that I should also have sanded about 1/16" off the bottom of the rotor as well, because the distributor cap had been pretty well smashed down onto the rotor. It still runs great, but when I get a new cap & rotor, how much has anyone else had to modify their Mel's kit to fit properly?