As someone who was a die hard carb guy that just went efi I have to say I like efi.
Went from an 800cfm Edelbrock AVS2 to a Holley Sniper and have had no issues with the efi system. It starts right up, afr is more stable throughout the driving range, and throttle response is just as impressive. I'm not using it to control timing.
Any issue I had wasn't related to the Sniper but ancillary systems. I had to replace my in tank Walbro 255/lph with a Walbro 450/lph because the former wasn't keeping up. And I'm upgrading things like the fuel lines (going to ptfe 6 an line and fittings as well as a better alternator).
I have zero regrets. I am not a tuner guy so I have others check out my logs and make suggestions but self tune seems to do the trick. It is fascinating to use. And I can watch all the sensors real time.
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