electronics in 52? IIRC the electric contact is probably an overdrive cut out. Does the car have an overdrive trans? If thats the case, it may be done with a hobbs pressure switch or a microswitch on the carb, eg. like a nitrous switch setup.
here is some info..."The electric control system works off 2 wires connected to the coil. There are 2 switches built into the carburetor to control full throttle and closed throttle shifts. The wiring goes to the transmission which has a governor, a solenoid and a switch."...Good luck.
51 chrysler fluid drive questions
