Edelbrock 18259 650CFM Thunder Series AVS Carburetor with M/C Edelbrock 18259 Thunder Series AVS Carburetor; Reconditioned; 4 bbl; 650cfm; Square Flange 4150; Manual Choke; Single/Dual Fuel Inlet; Gas; Mechanical Secondary w/Adj. Velocity Air Door; Ball Burnished Edelbrock 18259 Warranty: Yes