If you've got an ignition switch with a spring-loaded "start" position, it's for a passenger car, not a truck. The switch for the stomp-start engine will just have an ON and OFF position for the wire going to the upstream side of the ballast resistor- - - -no START provision at all. The small terminal on the 12 volt stomper switch is a ballast resistor bypass, and supplies straight battery voltage to the coil + terminal during cranking. Wire it to the downstream side of the resistor or the coil + terminal.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!