SML: SE-R questions

[Sk8rdi16]

Ok I know this is a ga16de mailing list, but i know Terrin has a SE-R and 
some others might also. My questions are, what octane gas should i use?, what 
type of plugs NGK?, i think it has sumitomo wires but don't know how old..get 
new ones or should these be fine? also what are some tips or tricks or any 
info you can give me on my new (91) SE-R 
o yea i talked the girl down to $1500!!!!
thanks all, 
Pat