F3 Cbr carbs on a 650 Nighthawk?

​I just saw a listing for some f3 carbs and I thought it would be a good mind stirrer to understand if these could work with an older nighthawk given that the outputs line up and it all fits in the space given. via /r/CafeRacers https://www.reddit.com/r/CafeRacers/comments/eohirr/f3_cbr_carbs_on_a_650_nighthawk/?utm_source=ifttt