For what it’s worth… damn near ANY carburetor (appropriate for the application) can be tuned for ‘better throttle response/fuel economy/cold starts’ blah blah blah.… it just depends on how much time and work you want to put into it. That said, fuel delivery is just one piece of the puzzle. Ignition, camshaft, intake, exhaust, gearing, torque converter (if applicable) all have to be ‘matched‘ for optimal results, regardless if you’re carbureted or injected.