750BT 750 cfm Blow-Through Carburetor

The CSU 750BT is a 750 cfm blow-through carburetor engineered to deliver a perfect blend of street drivability and strip performance, capable of supporting over 1100 horsepower. Whether your application is a 500 HP daily driver or a 1000 HP street and strip machine, this carburetor is designed to meet your needs. CSU begins the process by milling the choke tower and machining the main body to accommodate screw-in air bleeds. All venturis are meticulously cleared of casting flash and blended to enhance airflow. Following this, a custom-designed billet annular booster is installed, serving as a crucial component of the carburetor's metering circuit. Each base plate undergoes hand assembly to ensure a seamless transition from idle to wide-open throttle. The end of the primary throttle shaft is cut, and the base plate is capped for a refined finish. CSU also verifies the alignment of throttle blades in the throttle bores for both wide-open throttle and idle conditions. The vacuum port in the rear is tapped to accept a 1/8″ pipe plug or fitting. Custom calibration is a hallmark of CSU carburetors. The metering blocks are modified to suit individual customer requirements, including adjustments to emulsion circuits, idle feeds, and power valve channel restrictions (PVCRs). Secondary metering blocks are equipped with screw-in jet extensions. For the final assembly, Nitrophyl floats and Viton-tip needle and seats are installed. The jetting, air bleeds, and accelerator pump circuits are precisely calibrated to complete the custom calibration, ensuring the carburetor is ready to bear the CSU name. CSU also backs this carburetor with a 30-day money-back guarantee.