300+ hp, many ways to hit. What are you looking for? Drag racing? Street race? Shiok factor? Just to show off? Even if you can hit what about daily drivability, engine reliability, etc? You may find out its not worth it in the end, for a 4G18, fastest way still to drop engine, but since you from singapore, better make sure you know the consequences involved. In any case, wish you luck for you project, but my advice is to learn more first, " I wan to hit 300hp " isn't something so simple.
---------- Post added at 04:08 PM ---------- 6 hour anti-bump limit - Previous post was at 04:01 PM ----------
And hope I didnt sound too offensive anyways. If you still decide to go for it, i would say it would make for a very fun project. Gd luck!