You can always play with going the 60mm tb from a chrysler minivan route. I doubt it is really worth it onthe stock manifold though. It is a better option if going to a larger custom manifold. Otherwise I would just send my tb off to howell and port match the intake manifold when you get it back.

MuRiX
97 Eclipse GS HRC Stage II
And a whole lot of other mods...
89 Accord LSi - yes it's mine
http://murix.home.icq.com/index.html

05 Mazda RX-8
06 Lotus Elise