BBK Power Plus 65 millimeter Throttle Body for Ford 5.0L for all BBK 1986-1993 GM tuned port 305, 350 throttle bodies are designed to increase airflow and improve horsepower from between 7-12 HP. It depends on the vehicle and application. All BBK performance power plus series throttle bodies are CNC machined from high quality 356 aluminum castings. This ensures perfect OEM quality and fit every time. BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built High Flow Power Plus Series 65mm Throttle Body Increases Airflow to Improve Horsepower and Throttle Response Over Stock Recommended For Stock Applications Where Few Modifications are Made or Planned All New CNC Machined Casting Assembled with Components that Exceed OEM Standards, They Will Offer Years of Trouble Free Performance Requires Matching EGR Plate to Complete Installation Part# 1518