Different carbs for my cb750k dohc

[etmracing]

Purchasing a mac 4-1 and trying to clean the entire bike up, removing the airbox ect,.  Going to be running some different carbs so they dont depend as much on vacuum. Would 1981 kz1000 carbs be a good alternative?

[woodsrider250-2]

Could be, what size are they?  Probably too much carb though, I'm guessing.