I know what you're talking about but can't find much either. I don't ever recall much useful information anyway (like dyno numbers, or details on what the lift, timing differences were). I'm betting you'd be better off by timing your cams. You can simply slot the mounting holes with a dremel a bit and then time them to whatever is that hot setup for the bike - I have forgotten but the info is on this site as recommended by expert tuners. I think it would be more purposeful then hoping in/ex swap hits it right.
its cheap and you can learn a fair amount about the bike. If its due for valves its an easy time to do it.

good luck.

 

I don't think there was ever a post on "How To", the member that did it has it in his build list.

You would need slotted cam sprockets and as I recall his intakes were at 101 degrees for the lobe centers and 106 degrees for the exhaust.

 

I raised the matter with Roger D and was told it`s not really worth it. From what he said and what I found regarding the lift difference between the two cams (duration is the same) we are talking about 0.1mm additional lift.....