[FatBoy]

Thanks for the reply Cracker.

My motor isn't a runner and I am expecting to replace pretty much everything apart from the main castings and a few other bits and bobs. It currently has a cast crank and I'm pontificating over the various merits of trying to find a steel one.
We don't have nearly as much room on our roads over here as you do, so I would have thought that something like 500bhp would be plenty (my last one had something around that figure and I never felt like I needed more power). Do I need to find a steel crank at that sort of output ?

Thanks again.
Regards
Paul