[infernosg]

Pretty much what's already been said - they are ITB's made by a vendor on this site - Fuji Racing. Their brand of ITBs are the sidedraft style (Dellorto, I think) with a double injector setup (though I think they now have a quad setup) whereas EFI Hardware's (Tweakit) are downdraft (Weber IDA style to be specific) with a quad injector setup. Neither kit comes with an intake manifold so you would have to either obtain one or make one yourself with the proper flanges.

EDIT: Damn! ninja'd!