boosted 420A , its not that bad man, i mean sure you dont have the same internals and the engine isn't designed for turbo but its still ok cause you could get almost 300HP out of it
or you could get 450wheel horsepower out of a 4g63 STOCK engine. I say keep your car now as a daily driver and get something else to make fast. like a 91 or 92 gsx/ gst.