Thanks MX HEAVEN, I have most of those jets. Sorry Slackwell I'm keeping the Bing .
As you do
The bike will perform better with a BING although the Mikuni will get far (far, far) better fuel consumption.
I knew a guy that fitted a Lectron flat slide back in 1978 to his 360 H6 due to the poor fuel range. The bike performed much better with the Bing but the Lectron stayed on it so he didn't have to carry fuel and the beast still had plenty of go.
I ended up with the bike and still have the Lectron somewhere