Any one out there tell me what is involved in fitting the above filter, I have been told to fit a 128 main jet and block the centre air corrector. any comments please. Who supplys the filter?

Not sure on the jet sizing or air corrector blocking cos Ian Gray did mine, but it sounds about right.
The filter is I believe a PX600 model on here (Pipercross website) but not sure on which height to order. They dont supply a specific backplate so you need to buy a blank one and cut the carb holes yourself.

HTH
Chris

[Edited on 12/6/03 by ChrisGamlin]

Or buy the whole kit, filter + backplate and jets from TTS.

Ben