Probably due to people hanging on to the "last air-cooled" 911, not wanting to molest the "best" air-cooled 911.
964? Good question. Prices are pretty good and a great car overall to start with.
I suspect it's simply not enough vendors making kits?
Me, I'd kill for a 993 C4S in black, 8:1 CR, and a huge snail with around 1.5-bar........mmm, mmm.....
