Those carbs on current build will be worthless. Wait to upgrade carbs when engine build is done, and do whatever the engine builder suggests for the work done. 35s are to big unless your gonna be open dune riding, drag racing , etc.
Well, theres a few guys on there that are knowledgeable with the useless 2 into 1 carb setup. Could probably get you very close. But ya, keep tinkering till it blows. Buy 2 carbs , then come back for jetting advice.