Comparison between Solex 4A1 and Weber 40 DCNF
| Solex 4A1 | Weber 40 DCNF | |
| Barrels | 4-bbl | 2-bbl |
| Choke | electric/water assisted | manual |
| Secondary throttle | mechanical, progressive | simultaneous |
| Primary Throttle Bore | 40 mm | |
| Secondary Throttle Bore | 40 mm | |
| Primary Venturi Size | 28 mm | |
| Secondary Venturi Size | 28 mm | |
| Idle Jet | .050 mm | |
| Main jet | .130 mm | |
| Air Correction Jet | .170 mm |
