Description Completely restored quad set of Weber 40 DCNF 57, 58, 59 and 60, they are matched set. Originally for Ferrari 308 GTB / GT4 Carburetors are completely mechanical and cosmetically restored, with many new parts used in the restoration. They come with original Weber trumpets. Specification: Weber 40 DCNF 57/58/59/60 Auxiliary venturis: 4.5 Chokes: 32 Main air jets: 200 Main fuel jets: 130 Emulsion tubes: F36 Idle jets: 50 Pump jet: 45 If you have any question, feel free to ask us over message or email. We offer worldwide shipping with tracking.