Hey all, Ive had my 9th gen si for almost a year now and ive had my fun with the car and now im ready for an engine build. This is my first real project car so im learning a lot of things with it, but i have no clue where to start, especially since theres so many variations of this motor alone, i have a tough time going through all the parts. I wanna do a mild all motor build, shooting for around 300hp, any help with what parts to buy or what head swaps and what not would be greatly appreciated !