MSD 8227 Blaster TFI Ignition Coil Designed to work with stock ignition systems as well as mad-equipped cars and trucks Each coil has a unique turns ratio plus reduced primary resistance Bolt-in replacement coil produces increased output voltage If you plan to install an MSD Ignition with your blaster Ford TFI coil, use a PN 8874 harness for easy plug-in installation
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