AccuSpark™ This is a set of 4 Accuspark AC9C Performance Spark Plugs
Suitable Datsun Cherry 100a and 120a all years
AccuSpark
™ plugs are copper core for a better spark
Triple ground for a multiple spark paths and long life
Titanium plated for lasting finish .
Increasing the heat range will allow the plug to run hotter , this will improve the plugs ability to self clean , and should be used if plug regularly fouls .
reducing the heat range will help reduce the the running temp of the plug and will reduce running on but plugs may become fouled