Electronic ignition conversion help.

:?: I just put a new 360 with a new MP electronic ignition in my 68 Barracuda. I may have done something wrong as I can't get it to crank. I do have power in the run position at the ballist, ( I think it is the run position. I have hooked up the two wires from the ECU according to the diagram but don't get any crank. I can jump the started relay and get it to turn over. Can someone please tell me what I have done wrong?
Thanks
Gerry