Set your idle speed to something comfy....slowly lean the low needle, with each adjustment, the idle will begin to rise, using your trim, or travel adjustment, lower it back down to the comfy level. Repeat until adjusting the low end leaner does not result in an increase in idle rpm. At this point switch your routine to checking transition from idle to full, at this setting it will likely sag, hesitate, or even die. From here you will very slightly richen the low needle until the transition is perfect, plus maybe just a tad Then go back and adjust your high end for max RPM minus a hundred or two rpm.....then put some time on it.

Chad