There is a website called
www.ssgti.com. They specialize in modding the Swift GT and GTi(89 only). One thing they do is use the twin cam 1.3 head on a 1.6 short block. The twin cam 1.3 puts out about 100 horse, the single cam 1.6 16 valve puts out about 95 horse, but with more torque. The combination puts out between 120 and 130 with big torque.
HMMMMM.......me thinks that I'm gonna have to put me together a twin cam, 16 valve, 1.6, carburated....dual Webers?? hehe, gonna have to play with that theory!!
I'll let you know what happens.

It otta go very well with the power steering, dual cases, rear locker, 5.12s, and 35s on my long wheelbase sammy!
