The Edelbrock engineering team used the latest in Computational Fluid Dynamic software to design and develop these new throttle body elbows. These new elbows are the best way to adapt LS1, LS2 and Ford 5.0L-based throttle bodies to EFI manifolds with traditional 4150 style square-bore and Dominator® 4500 style mounting pads. An internal divider optimizes flow quantity and distribution into the manifold. Three versions allow EFI tuners to position the throttle body forward, backward or sideways and low/ultra low for hood clearance or higher for max airflow. Available in Satin or black powder coated finish. All Edelbrock Throttle Body Elbows include a universal throttle cable bracket.