There are some posts about my old B16 setup that made around 175whp. It was pretty basic and even had a low end header. Search for some of those posts and you'll get an idea. There's a thread a little lower about the "Destruction and Reincarnation of 99Si's b16" there is a mod list in the first post. Good luck. If you have any specific questions feel free to ask. Otherwise, happy hunting.