Forgot to mention, have started talking to Derek about an engine rebuild also (not till later this year) - whilst doing it, looking at doing the usual things people have suggested (porting the heads etc) and throwing in a small super charger - yeehah - but any recommendations/suggestions from anyone on this would be most welcome - didn't want to put the super charger on in it's current form. even though the engine runs well, it is getting long in the tooth (270K's now) and I am worried about throwing it in and 'breaking' stuff .. so thought it appropriate to look at as part of an overall engine rebuild ... basically looking for more power to accomodate the additional weight it will eventually have on board (roof top cargo carrier with touratop tent possibly, storage system and all the goodies I'll be throwing in it, new front bar and winch, custom rear bar with twin tyre carrier, me as I continue to expand, etc, etc) ...