The Atomic 2 EFI system from MSD features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 635 HP on forced induction applications. The Atomic 2 ECUis capable of fuel map self-learning and ignition timing control, improving idlestability, drivability, and wide-open throttle horsepower!Designed to fit on 4150 intakemanifold, with ample clearancefor factory air cleaners.

The Atomic 2 EFI provides the performance and drivability benefits that you expect from fuel injection. Quick starts, smooth idle and great throttleresponse just to name a few. Combine the fact that the Atomic 2 will support ignitiontiming through the ECU and youhave a win-win combination. Initial timing is handled through a compact handheld monitor where you simply answer a few car guy questionsabout your engine and you're off and running!