Where to get a carb tuned for a ?76? Honda Bike?

[TransAm12sec]

Hey, my friend has a Honda bike from the 70s with dual carbs. He's having trouble getting it to run right. Where can he take the thing to get it fixed?

Or what are some websites where he can learn about it?

[BadAzzGTA89]

What model i may beable to help!

[pOrk]

The Shop in milwaukee, or Steve from Midnight Fabrications

[TransAm12sec]

I want to guess some kind of cb, but I find out exactly later.