I am working a 56 Victoria. Probably not an original engine. The distributor is frozen in the block. What is the best way to break it loose?

i have used a simpler mix,my 48ford f47 sat in dawson creek in the rain and snow,this mix worked miracles on this project when trying to dismantle(these old trucks used a million nuts and bolts that where stuck) just a great idea i got off this site.