Edelbrock part #3679 E-Street 2 Ignition Control Kit for AMC 1967-1969 343-390 & AMC 1970-1991 304, 360, 390, 401 engines lets you take full advantage of your EFI system and gain ultimate control of your engine! With this specifically designed distributor kit, you will be able to access and utilize the expanded ignition timing control feature of your E-Street 2 system. This means that you will have the ability to easily adjust your ignition curve especially for your engine setup, while eliminating the hassle, complexity, and limitations of the standard distributor advance mechanism. And, you can do it all with the touch of a finger in the E-Tuner app. What kind of results might you expect? You may enjoy smoother idle, faster acceleration, better peak power, improved fuel economy, and the ability to control detonation when adding these ignition control kits to your Edelbrock E-Street 2 EFI setup.