MSD 8227 ignition coil. Designed for Ford Mustang and truck TFI ignition. A direct replacement part with superior performance compared to the stock Ford TFI coil. Provides quicker starting, better fuel economy and higher rpm performance. Features a unique turns ratio, lower primary resistance. Coil Wire Attachment: Male/HEI Coil Style: E-core Primary Resistance: 0.680 ohms Coil Internal Construction: Epoxy Coil Color: Red Maximum Voltage: 44,000 V Turns Ratio: 75:1 Secondary Resistance: 4.8K ohms Inductance: 5.6 mH Peak Current: 220 mA Spark Duration: 300 uS Use part number 8874 harness for direct plug in when using the MSD 6A box. MSD 8227 Ford TFi coil MSD-8227 TFi quick adapater harness used to direct hookup with MSD 6A box. Save time in wiring up your MSD coil! For use with the MSD 8227 coil shown above. MSD-8874 HOW TO ORDER: 1. If there is an applications box, click, then scroll the applications box to find your vehicle. 2. Click on your vehicle. 3. Click "add to cart" 4. Enter your information and submit order. 5. If there is no applications box, then just click "add to cart", then enter your information. HOURS: 11:00 am to 6:00 pm Monday - Friday Eastern Standard Time We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page. We will not ship to freight forwarding - expediting companies. PAYMENT METHODS: PayPal, Visa, Mastercard, Discover, American Express, money orders.