Powerjection III Fuel On Demand Powerfire Ignition Systems Fuel System Components   Viewing Powerjection I Systems   Powerjection 1 Cast (Polished) Finish SUPERSEDED BY POWERJECTION III Our cast (Polished) finish throttle bodies feature two sizes; 750 and 1200 CFM. They also include a detailed cast aluminum finish with roller bearing primary and secondary shafts. Most 750's typically come with 60lb high impedance injectors pre-installed while 1200's come with 75lb injectors. NOTE: 1200 Cast Units coming in February!     Powerjection 1 Billet 750 (Polished) Finish SUPERSEDED BY POWERJECTION III Our billet (Polished) finish throttle bodies feature two sizes; 750 and 1200 CFM. They also include a detailed CNC machined, then fully polished to a bright mirror finish, throttle body with brass butterflies. Most 750's typically come with 60lb high impedance injectors pre-installed while 1200's come with 75lb injectors. CUSTOM FINISH - CALL FOR PRICING AND AVAILABILITY     Powerjection 1 Billet 1200 (Polished) Finish SUPERSEDED BY POWERJECTION III Our billet (Machined) finish throttle bodies feature two sizes; 750 and 1200 CFM. They also include a detailed CNC machined billet aluminum finish with brass butterflies. Most 750's typically come with 60lb high impedance injectors pre-installed while 1200's come with 75lb injectors.