What is the best replacement carb for a 1988 YJ?

Any reason you don't want to rebuild the original?
The original on that 4.2 is a computer controlled POS disaster. My 89 originally came with one. They didn’t work well when new. Mine has been replaced with a Weber that is a copy of what came on the CJ 258/ 4.2.
 
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The original on that 4.2 is a computer controlled POS disaster. My 89 originally came with one. They didn’t work well when new. Mine has been replaced with a Weber that is a copy of what came on the CJ 258/ 4.2.
I see, that would probably be the reason.
The 80's was a rough decade, lots of great vehicles ruined by a bunch of dumb politicians and engineers.