Well what type of manifold are looking for. DO you want a log style or a tubular stlye. Check
www.overboost.com www.maxrev.com. Also look at
www.thepartstrader.com. There is some debate between the log style and the tubular kind. IMO Id go with the tubular kind. DragRev are also good manis. Check this site out it helped me a bunch.
http://www.cse.uconn.edu/~yelevich/turbo/turbo.html
And where in Miss are located?? im up in hattiesburg. Later.