Originally posted by E46_lover
oh, btw about the manifold..u can turn the stock M20 manifold upside down for it to work, and get a custom flange (pronounced with a short A sound, like FLAN-JUH lol..)made or something (heard that from randy)
Getting good grasshopper... couldn't have said it better myself. Bump up the fuel pressure with a B&M adjustable fuel regulator and get a Cartech/Vortech FMU. You might have to upgrade your intank fuel pump to a (so I hear) E28 535i pump. Stock injectors will probably be okay if you don't run over 7psi.