440 Test Stand: Do I need a ballast resistor?

For my rebuilt 440 initial startup I don't intend to use the alternator/volt reg circuit. Stock distributor with points. The control panel for my engine test stand will use an original ignition switch. I plan to use the stock "start" circuit from the ign switch, yellow wire (battery) to the starter solenoid and brown (battery) to the coil. For the "run" circuit, I plan to connect the dark blue wire (battery) directly to the coil without a ballast resistor. Will this be OK for the 30min break-in run or should I use the ballast?