Thanks dandydandywarhol wrote: 25 thou was the norm for contact breaker setups 30 years ago franco - plug voltages are around 3 times that nowadays - 25/30,000 volts not unusual, so a large gap can be used to help burn all the gas



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Thanks dandydandywarhol wrote: 25 thou was the norm for contact breaker setups 30 years ago franco - plug voltages are around 3 times that nowadays - 25/30,000 volts not unusual, so a large gap can be used to help burn all the gas