I'll have to go more with you on the carbs, but....
The picture I looked at wasn't able to blow up very large. A friend was asking me today, about the Pierce MCCH carbs. So we were searching the Pierce website. The pictures of the MCCH does look different from the small picture of the carbs on the Valencia blue. But what kind of Mikuni's. I run four Mikunis on my motorcyle and am somewhat familiar with Mikunis, as well as Keihin's, Webers, SK's, etc. and I don't recognize them.
Perhaps if the picture were larger?