E & J Throttle Body is the highest flowing in the market 1244 CFMS. This billet throttle body is CNC machined from T-6 aluminum in house. This item is built to fit 8 injectors with Ford model injector plugs and has the Holley #4150 bolt pattern. This piece has everything that a throttle body should have. For example, it has machined venturous for better flow, roller barring, thick brass butterflies with a diameter of 1.875 that flows 1244 CFM and has been raised 2 inches above the base for more torque, ports for injectors, and a fuel rail. It will fit the Ford TPS. At this time, this is the highest flowing 4150 bolt pattern throttle body in the market. This piece will fit the jay tech and the racing beat intake. This is the answer for all rotary vehicles and hot rods (V-8 needs to add a 1 in. adapter so the air cleaner can clear the fuel rails and some intakes might be some porting for the 1.875 butterflies) that would like to go fuel injection with minimal fabrications. This throttle body is used by some of the fastest rotaries in Puerto Rico and U.S.A. running mid to low 7 sec. This is a beautiful piece, must see to appreciate. Injectors sold separately. If you have any question, please e-mail us.