The process you are asking about is far more involved than that. There is not enough room on this board to post it all. Get the book Scientific Design of Exhaust and Intake Systems it is written by Philip H. Smith and John C. Morrison. The book contains what you are looking for. There are also a couple of websites that contain a wealth of info as well. Both use info. from the book, however just tidbits you realy need the book to get the whole picture. Try
www.burnsstainless.com look in the tech articals there is some realy good info. there. You can also find alot of info at
www.headersbyed.com Good luck and have FUN!
