Re: Which is better, CIS/CIS-E or Digifant I/II???? (dirty dub)
CIS/CIS-E are mechanical injection, descended from K-Jetronic. The injectors are open, the fuel dist has a little control of air/fuel mix, but not of the injectors themselves.
Digifant are electronic/rail injection, descended from L-Jet. The injectors are directly controlled at each cylinder, giving more precise metering and mixing.
So, CIS is simpler and thus usually reliable, while Digifant can be more efficient, or more powerful, and maybe a bit of both.