The thing is, in my mind if you can lesson resistance to air or exhaust flow, it makes sense those gases will move through the system quicker which would equate to performance gains.
We know that from free-er flowing air fliters and exhaust pipes and valve ports, so wouldn't larger carb orifices and inlet manifolds work in the same positive manner.
Personally I don't really understand why the changes in question wouldn't be of value. In saying that I'd imagine there are flow considerations like even rifling that have maybe not been explored as certain experimental areas.
Personally when I first read about the "improved" billet intakes I was one of those where my ears pricked up with an understandable "hey, let me know more"?
I certainly hope just because Fast Fred ran into some sort of difficulties that it is assumed this means they don't work. Yes I know the before and after dynes showed little but from what understand these intakes were one of the first prototypes meaning who knows what further experiments and changes could have improved the objective.
I guess time will tell if there is any real worth to these intakes and if so, the new entrepreneurs should they appear would also consider the carbs diameter as related projects.
In other words the market will drive this one but if we never see it again as a known mainstream improvement, we can safely know they're worth is more in the expensive bling category.
