maybe you just bust your needle tighten too hard?? i suggest a carb tear down, check up then rebuild and reset the whole enchiladas. then retry. don't forget that each time you set the low needle, you got to re-set (not reset) the high one too. about the idle needle, its only effective when u dont touch the gas trigger. when u hit the gas, the idle needle do nothing anymore.
PS engine stalling when u hit the gas= engine too rich