Yes, the Vintage Weiand Blower is purely for looks. Weiand (say WHY-And) has resurrected the swing-arm drive for your 6-71 supercharger so you can pretend to be Mad Max or just add a bit of nostalgia ...
Getting more air/fuel mixture through some of our contemporary minicar engines has been a problem, because companies in the speed equipment business necessarily have to make pieces for high-volume ...