Atomic 2701 AirForce Intake Manifold Lingenfelter test shows 36 HP AT THE REAR WHEELS over the competition as tested on a LPE Z28 Camaro Polymer material resists heat soak and minimizes weight 103mm Throttle bore allows the use of large throttle bodies for greater air flow Direct flow path runner design promotes maximum airflow Allows for the use of stock fuel rails, aftermarket rails or even the Atomic LS EFI