Hughes Whiplash Camshaft

I can't find the picture, but Richard (fopar) used 6 small carbs on his engine. Either snowmobile, or motorcycle carbs.
Here you go.

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How does it run. That looks sweet as hell. my question is....do all the carbs operate together or are they set up progressive. it seems to me they would work better if they all work in unison since they are smaller carbs. that setup probably sounds sick!! Beautiful work.