Edelbrock 3978 Edelbrock 1000 cfm throttle body with 1.75" throttle bores. This 4-barrel throttle body bolts directly to standard flange square bore carb mount flanges for competition electronic fuel injection systems based on Edelbrock Victor Series manifolds. Fully machined by Edelbrock, it is assembled and calibrated by Magneti Marelli USA and includes a GM style throttle position sensor (TPS. Features an attractive black powder coated finish for a high tech appearance. Uses Delphi/GM idle air control motor (IAC). Picture shows a typical Edelbrock competition throttle body but is not part number specific. Edelbrock 3978 Edelbrock universal competition 1000 cfm throttle body 3978 See all of our fuel injection performance intake manifolds! We have a large selection of fuel injection throttle body elbows which help to provide hood clearance and provide easier air intake access. We welcome CANADIAN customers! For ordering information, click on "Canadian Order Info" at the top left side of this page. LOW COST SHIPPING! Just $12.95 to ship your entire order by U.P.S. ground within the continental United States. Purchase any quantity of items and you pay just $12.95 to have it shipped! The more you order, the more you save! (Orders to Hawaii, Puerto Rico, Virgin Islands, and some parts of Alaska will have additional shipping charges. Customers located in these areas will be emailed the shipping costs for approval before we ship the order.) We use Postal Priority for APO and FPO addresses only. Additional shipping charges may apply to these addresses.