Bench-Top EFI Test Harness

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Get Your Wheels Going Right! If you're into making your GM beast handle like a dream on the autocross or road course, this Bench-Top EFI Test Harness is your new best friend. Built by Holley, the name you trust in performance, it helps you test your setup without the stress. It's got all the right connectors to make sure your engine wiring is top-notch. Plus, its rugged build makes it tough enough for those long sessions in the shop. Perfect for the gearhead who wants their ride to be more than just a looker! Great for tinkering on a lazy Saturday. Just plug in, test, and get back to what you love—racing! Show more