Yeah I was thinking alongthe lines of what you're saying pukka, just thought I'd chuck it up here and see what other people thought.
Might well go with a 360 degree thrust bearing T25/T28 hybrid, as that was ace on the one I had about 4 years ago. Never got to see the full end result though.
Management wise I'm spending a fair bit of time pikeying around the t'interweb for options at the moment, although the two choices that keep springing back to me (partially for the "bang for buck" factor) is either going to be Megasquirt, 'cos I've fancied doing one for ages, and never got round to it. Or possibly Nistune, but I've never seen Nisture on an S12, so there may well be a good reason for that!
Any thoughts/experiences. I've played with a couple of different management systems and engines, but never got as far as doing my old S12, just ran at low boost, before I had to get rid of it