I've been told by some veteran Inliners that the main thing is to have the carb "Inline" as opposed to V8 style, but others have reported that is doesn't seem to make a lot of difference in how the engine actually runs... As far as inboard vs outboard with the primaries, I doubt that matters much either, but it would seem that attaching linkage at the rear of the carb, closer to the head, could get pretty tricky.
