Installing a EI on my 73 and starts funny

Hi, I Just installed an Electronic Distributor from an 81 on to my 73. When I crank it over the engine won't start. Then when I let the key go from "start" to "on" it fires right up. I used my volt meter and found the wire that supplies 12v to the resistor when the ignition is in the on position and used it for the 12v supply to the module on the distributor. I followed the diagram in:

Any help?