David,


Anywhere you set it to start is a good place, if you know your engines well enough to know if it is running too rich, or too lean.

I seem to remember the instructions that came with the Webra Racing #1030 that had this Dynamix carburettor installed, said to use a fuel pump... Exhaust pressure was stated to be somewhere between borderline and insufficient.

...But there are others using the exhaust to pressurize the fuel tank, without too many problems.

Maybe this photo of the external linkages between the parts, would be good to help you find a reasonably good starting position.


And BTW, the low speed needle is a classic fuel metering system. The only thing it has in common with an air-bleed low-speed mixture adjustment, is that it is turned in the closing direction to open it further and vice-versa.