Interesting means of cleaning a carb

Rebuilding my Holley 1920 now. Had a can of 35-year-old carb cleaner that finally turned to syrup. The fumes would part your hair! Bought a 3/4 gallon can of Gunk cleaner. Doesn't strip everything like the old stuff, but what does?

My FSM says to use denatured alcohol as a cleaner.

Good luck!!