I do like the analog gauge, but my engine tuner keep pushing me towards the digital ones. Too many choices.
has your engine builder seen the AEM digital faced gauge on a vintage car with carburetor ?
I first tried the digital face AEM gauge on my Paxton GT350's. It was unsatisfactory for 2 reasons. The fuel / air metering on a carb engine is by definition not as precise as the EFI engines. Because of this, the readout is continually flashing from one number to another and to get any use out it you just have to note the two extreme readings and average them.
The other reason I came to dislike it is the digital face is out of place in a vintage car.
Eventually I replaced it with the analog face AEM unit. Much better. The needle is sufficiently dampened so it's movement is steady and incremental. Much easier to use as a tuning aid.
NOTE: the best approach when using the wideband A/F gauges is to observe at what number the car runs best, and stop the tuning there. Later on, if you are having an issue with the engine, you will know what A/F ratio number is the "normal" for your car, and can take the proper steps to get back to that point.
Trying to tune a carburetor engine to achieve a mythical perfect A/F ratio number is never going to have a satisfactory outcome and ends up being a huge waste of time.
Don't let the tail wag the dog