I need to know where you are lean to help you out.
If you are lean on the bottom end, then you have to adjust the needle using the turn knob provided and or the screwdriver method described in the manual, im not 100% sure but i think tighening makes it leaner and losening makes it richer, but check to be sure.
If you are lean on the top end then you have to replace the needle with a difrent size. Which involves taking the gas tank off, and disconnecting the carb cables, you can change it while its on the quad. The manual gives you all the tools and step by step instructons on how to do it.
With your mods i could see you running around an 18E.. with about 15-2 clicks from full rich on the needle adjustment, but thats just a guess it varies greatly.
The needle adjustment affects 0-1/3 thottle
The needle itself affects 1/3 to full
Another thing that would help would be to do a valve adjustment, it can richen up your quad a very considerable amount depending on how far off the tolerences are. So when you jet your setting are for when its fresh off an adjustment.
Also the accelerator pump only affects throttle response, i would give you an approxamit place to put it but ive adjusted mine so much i have no idea where its at...
The edelbrock carb is simple to jet, yet it requires a lot of patience to get it perfect, once its perfect you will most likely never have to adjust it again unless you are doing some mods. The edelbrock adjusts itself to elevation changes, much like EFI except its a carburator.
Also one last thing, if all else fails you can also adjust the floats to gain fuel but i do not reccomend this, its pretty touchy and little adjustments can make all kinds of things happen.
And for the record i was not being a dick in my last post, you just seemed sorda clueless as to what you were doing so i was simply helping you out, i hope my post helps, but what i told you can all be found in the manual.