What to soak carbs in?

[mvk24]

Hey guys just got my carburetor in from aperion and gotta give them a soak for 24-48 hours. Rubbers seem good so far and all diaphrams have a good vacuum.. gonna pull out the diaphrams and let rhe carbs sit in a bath to clean off any residue but what should I soak them in? I've heard gasoline, pine sole.. any suggestions? I wanna do the best cleaning possible without have to take out the Jets and o rings cause as of now I have no reason to. Also should I just hit everything with a nylon brush and towel afterwards.. and what's better 24 or 48 hours??