No Sir, not sure if any carbs actually come with them, think they just drill them to a predetermined size.
If I were you, I would just start with squaring the primary Tslot and close the secondary until your idle lowers. After you get there see where you’re at.
I think you’re idle is too high right now. Listening to your engine I have a rougher cam, 251/258 at 50, and I can bring my idle down to 750 if I want. I use 900 to keep the cam lubed at idle.