Tuning EFI can seem a daunting task in its own right, but crimping and de-pinning connectors? Yikes! Fortunately, Holley’s done all of the research to take the mystery out of the process of wiring your Gen 3 hemi engine. In this video we show you how to identify connectors and the tools required to crimp and pin/de-pin them to build a wiring harness.