RE: MSD wires The large red wire that is hooked directly to the battery is where the power for the MSD (charging the capacitor) comes from. As the capacitor charges basedd upon its discharge inot the coil it should be charging at 4 X rpm frequency which should be a lot faster than you can see. The small red wire hooked to the ignition switch turns the box on or off. Current flow through this wire should be minimal. R.
