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Jason,
The XFI / XIM fuel / ignition management system will work with your application. The only thing that will cause issues would be the factory Ford coils. We have found that under boost and high cylinder pressures, the stock Ford coils will not control spark properly. To solve this issue, we recommend that you use the L92 GM truck coils (FAST p/n 30256-8) Also, you will need to order the XIM Ignition Harness p/n 301313A, however, this part number is not active at this time. We are working on getting the coil harness in stock, but if you need to proceed with this application, we can offer you a diagram for the 301313 harness to convert it to the GM coils.
Thanks,
John Williams
877-334-8355 ext. 568
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