Hi is it possible to fit fuel injection of a favorit onto an earlier engine for instance the Skoda rapid 136 engine 

@Mhenson016 There was a (rare, late) Estelle/Rapid 136i.

1 hour ago, KenONeill said:

@Mhenson016 There was a (rare, late) Estelle/Rapid 136i.

 

Not the same set up as a Favorit though.....it ran an ancient Bendix type injection and a proper Heath Robinson cobble together in the engine bay! 

 

Favorit injection will fit onto the Rapid 136 engine....but you're going to need a lot of wiring and a swirl pot and high pressure injection pump...and some work on the bellhousing I suspect to fit a crank sensor.