If you shimmed the needles with the shims I sent, turned the air screws out to 3+ turns and added your larger main jets, then for sure the bike will be richer!!!
In fact, it may be a little TOO RICH for the stock exhaust.
Someone must have drilled the screws, maybe a smart dealer, or the previous owners boyfriend?
Any other indication of other changes? No other shims under the needles?