> They don't use the whole 20V NA because it's 10.5:1 compression, too > high to > add a turbo to that design of engine. D'oh, of course. I was thinking 20vt, when of course those are very rare. 20v head, 2.3 block, and you've a homemade 20vt that will work. -- Huw Powell http://www.humanspeakers.com/audi http://www.humanthoughts.org/