I own a '71 with a 2L and dual Webers. Fantastic sound and the throttle snaps! I love it.
I own a '74 with a 2L and SPICA. Mechanical fuel injectors are cool. They're analog computers controlling four small pistons pumping gas to the engine. What could go wrong with such a set up!!!
Assuming nobody has "messed" with some important setting and as long as it's mechanically sound, the system can be put back into good condition and fully adjusted. The throttle won't snap when blipped (as compared to dual Webers). The music of air rushing to a carb is not there. But if you do the conversion, you won't have to mess with the TA or change the SPICA filter and oil, or check for gas in the oil, because the pump is leaking.
Remember that if you change to dual Webers, you lose the originality of the US market car. Also consider this; the European versions has dual Webers for many, many years after they stopped sending them to the US. If your car stayed in Europe, it would have dual Webers from the factory.
So, since dual Webers were used in Europe, you could say that to retain the true soul of the car you should be using carbs.
Personally, I like the dual Weber set up. I like the response of the motor. I like the sound of the air breathing through the carbs. I like having a simpler system under the hood (you get rid of a lot of things - it's not just the SPICA pump). And you have more room to work under the hood on the right side. And there's less chance of something breaking and leaving you on the side of the road.
My recommendation is to see if you can get her to run with the SPICA system. If you can and you get it tuned properly, then enjoy the car for the summer and make the Weber transformation part of the winter maintenance/upgrade plan.
When your car is right, you'll feel it. If you love the mechanical aspect of these older Italian gems, I can guarantee that your red '84 will be collecting dust as you enjoy the heck out of your new car! My guess is that you'll wind up selling it.
Enjoy and keep us posted on your progress!
Thanks for responding! It’s funny you mention originality though. This paint job is sooooo incredibly unoriginal, so keeping it “authentic” isn’t part my plan.
You mention “snap throttle”, what is actually meant by this?
The way you describe the Webers functioning makes it seem like it’s the motoring bliss I am seeking!!
(Google if you are unfamiliar with the site, I highly recommend it!)