CR33 baseline jetting for Z1-900

Finally getting back to my '75 Z1-900 project. Have a set of CR33 specials that I am wanting to use - Looking for baseline settings to start with.

Engine: stock Z1 bottom end
1015cc pistons, mild cam
lightly ported head (mostly just polished up)
V&H exhaust

Carbs currently have NO main jets
slow jet is #38
Air Jet is #230
have not checked needle setting yet

Thanks in advance