“The incoming airflow pressurizes the box and then each cylinder sources its air from the common area as required.” “We think that the runner design is at a good point to make power out of the box,” says Pando. The intake runners have bellmouths formed at each inlet end the cylinder head entry points have enough meat to port-match the manifold to your heads. The runners have more meat at the port openings to allow for this. The ability is there so that the race-oriented enthusiast can get to the innards of the manifold to port-match it to their choice of cylinder head. You take the factory manifold off, put the factory fuel rails back on the Airforce, put it on the car, and you’re back up and running.”Ĭreated from a high-strength polymer that’s designed to resist heat soak and minimize weight, the Atomic Airforce is a two-piece clamshell manifold design that allows the end-user to open up the halves and get inside the runners for porting, although that’s not required to see horsepower gains upon manifold installation. “There are some things we could have done to make it even better, but we wanted to be able to use the factory fuel rails so that the end user doesn’t incur a large expense during the change to our manifold. “The challenge was to make this manifold fit under the hood ,” says MSD’s Joe Pando. They pulled out all the stops during its development, determining that there were a number of factors that would play into the product’s acceptance in the marketplace. As part of MSD’s Atomic EFI series of parts, the Airforce intake manifold is a clean-sheet design from the company. With an ambitious name right on the outside of the box, the groundwork has been laid for this new intake manifold to be a stormer in terms of performance – and as we found out in our testing, it lives up to its name, boasting large gains over the factory manifold on our test engine.
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