One of the kind of cool things that is relevant to our interests was the field of 1964 and 1965 911's. They were all running an alternative "sustainable" fuel, I believe the one being developed by Porsche and Exon/Mobile. Speaking with a number of owners and mechanics in the pits, it was interesting to get their take on it. In some cars, it was literally "plug and play", in others it required significant re-jetting. All are running Solexes, by the way, since Porsche didn't switch to Webers until, what, 1966?
