Alan, great analogy on the 911S vs R. Also, the Homologation write up is much appreciated, and helps put some context to the overall picture. Can you additionally clarify the point when Nissan deployed the Lucas FI for the s20, and how that affected performance of the s20 engine? I've seen period pictures of installations in a C10, but not in a PZR. Not much is written or known about it, but some loosely researched articles suggest that properly tuned FI engines could add upwards of 50 BHP (perhaps aided by different internals? Hotter cam? ). On the topic of Homologation, would FI be homologated for a C10 or PZR, or is that considered more in the "factory prototype" category? As an aside, I spent only 10 precious minutes driving a 911R a few years ago, and I can confirm that it feels, sounds, and goes like no ordinary 911. I may never get the chance again (sigh!).