1 x genuine weber emulsion tube to suit DCNF Weber Carburettors;
More high holes typically means a leaner mixture under slight accelerations, more low holes is richer. The thickness of the emulsion tube also has an impact on the amount of fuel sitting in the well surrounding the emulsion tubes.
The Weber tuning manual has may pages dedicated to emulsion tubes with detailed drawings and measurements of the varying emulsion tubes.
** Please note**
This is a genuine Weber (European) emulsion tube - Not a Chinese copy. We have seen these copy Chinese emulsion tubes at work on a Dyno and they simply do not operate as they should.
When purchasing Weber jets and venturi, you are purchasing precision calibrated parts. Make a habit of asking if they are genuine and where they are from. Give your weber carburettors the genuine parts they deserve.