Jimmy, my T160 never needed chokes, and I was very glad to ditch all of that detritus!
I set mine up T150 style, meaning (if I recall correctly) richer needles, needle jets, and slide cutaways. But I also fitted the T150 ‘date box’ air filter (initially at least, I fitted velocity stacks later).
I’d certainly consider having them bored and sleeved whilst I had them off and stripped.