Listen after racing go-carts with my daughter in the World Karting Association all over the country I have learned a thing or two about re-jetting a carborator.
My recommendation is buy a set of OEM jets and a set of pin drill bits.
Using the pin bits find the drill bit that fits the hole in the OEM jet.
Now comes the trial and error
Take the next size bit and enlarge the hole by turning the bit with your fingers till you drill through the jet.
Install jet test unit.
If desired results are not achieved repeat above steps till they are.
Just as a side note buy a couple extra jets.