The Fiero proved to be too heavy for even two Busa engines. I am going to be working with Steve Graber ([ www.grabercars.com ]) to build a twin Busa powered La Bala. That will be a FUN car to drive. With a power to weight ratio of 4.3lbs/hp...look out!
The Fiero will most likely get an EVO VIII 4G63 with a Lancer trans someday. That will make for a unique car I think.