I never tried drilling it, they can be pretty great even stock. I would drill it, sure.
but there are also cheap knockoffs of the hobbit carb. I've had pretty mixed luck with those cheap carbs of other varieties, about half of them seem to be ruined, but since theyre less than half the cost of OEM, you can just buy 2!
I'm kidding, mostly. I would try drilling it and i'd also try a knockoff. worst case you learn something about why it doesn't work