01 / ENGINE SETUP

Find your starting settings.

Enter your engine and carburetor details. Then tune the result under load.

SIDEDRAFT WEBER

Engine

Displacement

Cylinders Maximum intended RPMUse the upper operating speed you plan to reach. Engine specificationSelects a cam/idle example, not a jet multiplier. Intended useAuto sizing: road favors the lower venturi; track the upper. Results update as you edit. Induction

Carburetors

Weber family Number of carburetors Intake layoutEach supported Weber has two barrels. A shared manifold needs its own calibration. Throttle bore Installed main venturiOptional, in millimeters. Also called the choke. Float type

Altitude and fuel

Operating altitude

Altitude use Fuel composition Octane ratingRecord the pump rating; it does not set jet size.

02 / WORKSHOP REFERENCE

The complete tuning guide.

Procedures, calibration tables and example setups from the supplied sources.