What are you going to do with the car exactly? Just a daily beater or something more fun?
It has a redtop SR20? Are you sure it's not an SR20DET? The redtop SR20DET came in the early Silvias and Pulsars.
I can't help with parts but resources and information are abundant for those cars. Sport Compact Car had an awesome project B13 that was used for autox and track.
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