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Mastering the MSD 6014: How to Wire and Install Your Carbureted LS Engine Control At Scram Speed, we build and tune a wide variety of LS combinations, from extreme twin-turbo Holley Dominator setups to simple, reliable street cars. But when it comes to raw bang-for-the-buck performance and clean engine bay execution, a carbureted LS engine with an MSD 6014 LS Ignition Control is tough to beat. Installing the MSD 6014 is vastly simpler and more affordable than wiring a full EFI swap, especially i …