[kamilk69]

well i was thinking of going 3inch, but better safe. i dont want to make it then realize that its not enough.

inake manifolds arent that hard to make really all you need is a flange, runners, velocity stacks, and a plenum. there are entire kits online. th only problem i have is getting the flange and finding someone that can weld aluminum.

here is that site.
http://www.rossmachineracing.com/index.htm

im just thinking what design would work best., and if i make my own kit, i can run a big mustang throttle body, which still probably has the same throttle postition sensor as our focus's.