87 red_civicsi

I have an 87 rex si. super fun car to drive. i just picked it up for 500. And it runs better then most hondas I've come across. But anyways i have a 14b dsm turbo, 1g dsm bov, 1g dsm smic, and dsm 450ccs w/ resistor box and also have a turbo timer. i wanna build my a3 and boost it if
possible. i just think the idea of a single jingle kickin butt sounds fun. the car feels like its been rebuilt cuz of how responsive it actually is. but then again its a bit boggy. mostly on cold start tho. and also my stock w/g spring on my 14b is 12lbs. would this be ok? if possible i want forged internals rods, vitaras, race bearings. any advice is greatly appreciated

Hey everyone I've got an 1987 honda civic si hatchback. i just bought it yesterday for 600. I've got a million questions. first off, i was wondering should i swap out the motor for a dohc or can i just go with the vitara piston/rods combo in the single d15a3?and how what do i need to convert to obd1? Also, how would i convert to electrical ignition from vacuum? My goals are to run 10-15lbs of boost and be anywhere from 250-300hp.