As you may already know, when we purchased the ’69 Charger from Atlas Muscle Cars of Blue Ridge, Texas, the 440 Magnum engine had a 4 barrel carburetor atop a four port intake manifold. Anybody who knows Mopar knows that you have to put a Six Pack on a 440 motor, but even that wasn’t badass enough for us. So we decided to do away with old school, outdated carbureted power and that’s when we got in contact with the gear heads over at FiTech EFI.

FiTech hooked us up and sent us a Six Pack EFI system. If you’ve heard of electronic fuel injection conversions, then you’ve heard of FiTech. These guys engineer fuel injection systems that look exactly like carburetors. But before we get into the specifics, it’s important to first understand the difference between a carbureted engine and a fuel injected engine.

The primary difference between carburetion and fuel injection is that fuel injection atomizes the fuel through a small nozzle under high pressure, while a carburetor relies on suction created by intake air accelerated through a Venturi tube to draw the fuel into the airstream. The latter can be problematic because it relies heavily on the outside air, which can have various pressures and temperatures at different altitudes and weather conditions. This makes for an imbalanced tune of the fuel to air ratio in the combustion chamber. Acceleration can also be affected by steep inclines, and a loss of adequate fuel delivery can be felt when climbing hilly roads. Fuel injection does away with all these issues by using electronics to monitor the fuel to air ratio. The amount of fuel that gets injected is controlled by a remotely mounted ECU. Benefits of fuel injection include smoother and more consistent transient throttle response, such as during quick throttle transitions, easier cold starting, more accurate adjustment to account for extremes of ambient temperatures and changes in air pressure, more stable idling, decreased maintenance needs, and better fuel efficiency.

FiTech takes advantage of this by combining the things we love most about both. Carburetors look cool; fuel injection performs better. Put the two together with some brilliant engineering, and you get something quite like the Six Pack EFI that is on the ’69 Charger.

The pros at FiTech like turning wrenches on their products, and they wanted to install the parts for us at their shop in Riverside, California. So without a second thought, we said yes and we drove the Charger up the I-15 to have them do the install.

The first step in the process was swapping out the gas tank with a modern, EFI ready tank. Within the tank is a reservoir that keeps gas near the fuel pump at all times, which solves the problem of driving on steeper grades. Our mechanic for the day, Mike, made quick work of this.

Next, Mike ran steel braided fuel lines through the underside of the car, all the way up into the engine bay, where they pass through a fuel regulator, then split with Y-shaped fittings and later fed to the EFI six pack.

Mike and I removed the 4 port intake manifold and then began to build the Six Pack EFI on top of a 6 port intake manifold we purchased from Edelbrock. We mounted the Six Pack system and new manifold to the 440 and started hooking everything up, including the fuel lines, wiring, and ECU. He put some new billet chrome air cleaners on that were custom made by Built 2 Apex, and the system was ready to rip!

After doing some test driving and tuning, the ’69 Charger was ready to go back home.

The guys at FiTech did a great job with this install and the new system just makes the Charger even more badass. Watch parts 1-3 of the install below and make sure you’re entered to win this beast of a car at sweeps.restomods.com.

You can also make the switch to electronic fuel injection by purchasing your very own FiTech EFI system over at fitechefi.com.