Help needed Dodge Dart 1966 wiring this is what I've done so far, can't get it cranked, put in a ez wiring loom 12 fuse in it

Have 1 wire alternator, electric distributor, no Ignition resistor no alt regulator wired it so far so good but it will not cranck, wired relais as the Mopar diagram, does the relais ground? What could be wrong? Have a new Ignition coil, new Ignition switch, new starter....can it be that the safety neutral switch is bad? Backup lights work ok! Where does it get the positive power from?