Just curious if anyone has used them on their l28's..

I'am interested on the whole needles/seats and tuning..

we used one on my "turbo240" till my dad sold it. he did all the carb tuning.

i used one on my 260z janspeed turbo 2,6L, and the carburetor is simple in his working, but in my opinion difficult to have a constant tuning...(i think because of the fuel viscosity auto adjusting systeme)

you must preadjust the jet level by first have the jet in the same level than the carburetor body hole, then turn the mixture adjusting screw by 3 turn 2/3 to the right then normaly you are 2.97mm under the carburetor body level, start the engine and when it is hot adjust the mixture by turning the screw to have the higher idle (to the right to have a richer mixture) after adjust the idle by the idle screw.