Hey look new blood!
Lol hey dude. Car sounds nice. Alot of money for an S12 but that's subjective ofcourse.
1) Yes 114.3 same as S13 200SX/Silvia
2) That's ridiculous. S12s and Bluebird Turbos
should have 97 RON Unleaded. Leaded doesn't even come into it.
I used both 97, or 95 RON when I was feeling tight, and never had any issues. No pinking or anything