Check the distributor pickup by using an ohm meter across the connector. I do not remember what it is supposed to read but it is simple ohms.
Set your meter on ohms and read between the two wires on the pickup, should read around 300-900 ohms.
Then set the meter on the lowest AC volts and measure the voltage from the pickup when a reluctor blade passes the pickup, should read slightly less than 1 volt.
