Carter 750 float level

The actual float level under running conditions is controlled by n/s seat & fuel pressure. Change either one or both, and FL changes. One good thing [ & about the only thing I can think of ] about the brand H carbs & clones is the sight window in the bowls for accurately setting fuel level. Carter published a chart [ which I have ] which gives you the reqd static FL adjustment change reqd with changes in fuel pressure & n/s seat. I cannot understand why the Edel carbs use such a low FL setting when they come with 0.0935" n/s; especially on the bigger 750/800 cfm models which are touted for performance. Such a small n/s size, you would expect the FL # to be smaller so that the fuel level is at the correct level in the bowls. Only reason I can think of for such a low fuel level is less fuel slosh during cornering. Another chart from Carter shows the fuel flow for n/s size/fuel pressure. For the 0935 n/s it is 48 gal/hr @ 5 psi, enough to support about 570 hp, with no margin for error. If fuel pressure drops or A/F ratio is rich, it will support less hp.

Do not adjust the floats parallel!

The float arms soldered to the float body. I have seen variations in the exact position where the arm is soldered on. So using the parallel method could be unreliable.

The n/s size needs to be balanced against sufficient fuel delivery to supply the engine & maintaining the correct f/level. A large n/s will admit more fuel, but fuel level/flooding is harder to control. A 0.110" is a good compromise for most perf engines.