I made this a while back...needs a bit of tidying up...has flexible hose that ducts straight onto the twin carby area of the engine bay.
http://images.thesamba.com/vw/gallery/pix/249708.jpg 

Matt

nice stuff, hey matt, what kind of mirrors are those? ive seen that style in alot of pics and just wondering what they were, how they mounted etc, and where to get some from

Revolution racegear...$79( i think).

They screw on...bit of a dodgy mounting bracket...can be made to work.

Matt

cheers man