best soaking carb cleaner?

RustyRatRod said

I have one. It doesn't do chit.

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Ive had 3 of them, 1st one was great, til I wore it out
#2 was like RRR said.
#3 is a little bigger, works fine like #1 did, til it didn't
I got about 3 years out of the 1st one and was skeptical of it at first.