For these DOHC CV carbs there are two answers.
Deuces wild says to start by replacing the 68's with 75's and the 102's with 110's. You'll likely need to experiment with jetting a little bit after that point depending on your engine.
cb750c says to not use pods with the stock carbs because they'll never run as well as the stock airbox. If you want to run pods you should buy different carbs.
I haven't tried to run pods (yet), just passing on info.
If you do decide to do it, I found this resource that might be helpful for the fine tuning:
http://www.factorypro.com/tech_tuning_procedures/tuning_carbtune,CV,high_rpm_engines.htmlNeed to combine it with some more info/tips from here:
http://home.everestkc.net/malsin/Motorcycle/carb/mc_carb_theory_101.htmLet us know how it goes.
Also - pics of your new hardtail build?
1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals
My wife's recipe website that I'm trying to help promote:
Strawberries for supper. Yes, I am a lucky man.