FAST? 4 Barrel Throttle Bodies incorporate tapered and radiused throttle bores and precisely machined progressive linkage for smooth throttle operation and unparalleled airflow. More airflow equals more horsepower. Inward opening throttle blades increase performance. Shorter height for better airflow, easier packaging for tight hood clearance & reduced weight. Flows 2,000 CFM Comes with IAC/TPS and Connector Adapters