Prevent chunks from loading

I’m having a hard time with resource intensive bases with chunk loaders. IC2 doesn’t have a config option like mekanism does to disable chunk loaders. I can ban them with another mod, but the block is already placed in the world. Is there a way to rid myself of them in sponge? I’ve tried deleting forcedchunks.dat but it just all comes back.

You could open the world in MCEdit, select the whole world, and remove all chunkloader blocks.