I like the idea. I like the RB20's super short stroke. I was wondering though, how good does the RB20's head flow? That stroke could let you rev to the moon,(not that you would want to for ultra resonse) but I didn't know how the head design is on it, and if there are huge aftermarket cams for it. (I'm sure there prolly are). Eiether way, I like your idea.
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