So I threw my carbs into the ultrasonic cleaner yesterday.
I bought this ultrasonic unit off of ebay:
https://www.ebay.com/itm/New-Stainless-Steel-10L-Industry-Heated-Ultrasonic-Cleaner-Heater-w-Timer/201970330204?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649
I think they turned out...