is the guy called Appleyard and he did a kwak z2000 and other conquoctions in his house and featured in some bike mag and mcn.
imagine all that brains gone into building a nsr500 and sticking it in an gixer like that (sorry gixer lovers, never been my favourite model), maybe one too many track day offs, i suggest a new arai.
i've got a vincent engine i'm thinking of putting into a 89 yz250 frame...nice?