specjazavani

Hello, I have a mint 1997 e36 320i I believe it has a m52b20 in it. Wanting to go bigger engine and want any advice anyone can give me in regards to this conversion. what is best engine choice. I am wanting as much HP as possible and would consider rebuild and supercharge engine already in car. What is involved if i supercharged? what is involved in putting bigger engine in? what engine should i look at? any help appreciated thank you Mat