1989 Nissan 240SX

Came from modifing old subarus. Got it 4 years ago, typical non running 240. Sourced a sr a week later. Learned how to swap with a standalone ecu and setup all the working, drifted it for 5 something events then blew up the eninge from a wastegate line coming off and hammer down all weekend. From there went with building an sr with my sr guru Andy Myers. Another buddy helped fit and taught me paint and body work. Then had the upper part wrapped from lex wraps. I started this project for 2 reasons. First reason was prior to this I got into drifting a d21 pickup, bone stock ka, rock auto struts with a open diff and bench seat for the first year. Second year was some seats I trade for 2 6packs of beer, And welded the diff. Eventually decided I had 2 avenues. Dump alot into the d21 to make it marginally better to drive or go another route. The second reason was taking what I learned in building subarus and apply it. Going with the correct cams, how high of compression should the new pistons be? What ring gap would best suit this? What gear setup is ideal? What exhaust would be best for what i want? Only thing I wish I knew was that how terrible wiring can be after so many different owners have had a car like this.