I have toyed with the idea of the electric chokes on my 2903S carbs, as it doesn't look like too much of a job given that the round covered area where they go is provided on the original carbs, even though the well type choke is what is installed in the ram intake manifold.
I haven't done it because I have the original setup installed and adjusted 'well enough' that waiting about 30 seconds on fast idle is about all it takes to blip off the highest point down a notch or two to save the transmission bands. The biggest problem I have with my 2903S carbs is the choke pull-off function upon start up. I think the 'cylinder' that the little piston sits in is no longer perfectly round and therefore has a bit of a bypass leak, which prevents the piston from pulling against the choke spring at startup with sufficient force, making the mixture too rich at first. I had to adjust the bimetallic spring tension on the chokes so that they don't 'snap' shut when cold, but just barely get closed so the now-weak vacuum action on the choke pull off piston is sufficient to pull the choke back open to the proper specification once the engine starts. Other than that, the warm up takes place fast enough that both chokes are open in a relatively short time, even if not at exactly the same rate. I'd be more likely to make the change if the car was used as a daily driver in a climate with wide temperature swings between summer and winter. For the kind of fair weather, relatively infrequent use my G gets (2000 miles per year or so), I can live with the original pieces.
I wish they had 'external' choke pull-offs like the AVS on my Hurst, as I would just put new ones on if they were 'weak' or worn. Any other suggestions for getting full pull off action on the originals on the 2903s would be appreciated.