Holley 1920 jet size

You could drill the jet out easy enough you just need to know what size to drill it to or experiment with 3 or 4 old jets and increase the size in increments until you get where you want to be.I do this on my 2 stroke motorcycle carbs
Here is a link to some jets https://www.amazon.com/dp/B07DS8HMBS/?tag=fabo03-20