You can do a stand-alone ECU that'll interface with the stock gauges like Haltech or Motec and keep the engine's fuel injection components. No need to take a step backwards with an EFI carb setup.

 

Found one... Oh hello LS 370z - LS1TECH

Kit for the installation:
http://www.fueledracing.com/products...92b05349c3a200

 

You do have a point I'm old school thought and love a carb style set up.

 

I started on carbs as well and can still tear them apart/modify them for performance applications I'm looking at LS crate engines now. An LS7 would be a beautiful thing in a G or Z. But it's $13K just for the engine (new).