There is a really annoing bug in v. 3.8b: for some reason the singularity compressor will explode for me, even though its hooked up to an LV transformer, so it only takes an input of 32 EU/t. I use forge v. 220.127.116.11
Unfortunately changing these Values in the config file does not have any effect (Beta 6pre3_2).
This seems to be caused by the default Values beeing hardcoded in TileEntityReaktorCooler.class in the methods private void reactorcooler(TileEntityNuclearReactor tileEntity) and private void reactorheater(TileEntityNuclearReactor tileEntity)
Plus i think You would need to rewrite the logik that evaluates if it needs to consume a block to work with the dynamic values from the config.
Also it would be cool to be able to run the Reactor Cooler without needing a Reactor Containment block (which also needs to be active atm).