I don't know much about pelts, but there seems to be a lot of air in the water system. That can't be good.
http://albums.photo.epson.com/j/View...p=66868185&f=0
Is there really a need for the antifreeze? The only reason tu use antifreeze would be if you plan on having the coolant drop below freezing temperatures. Plain water has a higher heat capacity; I'd try running pure distilled water and getting all that air out of the loop.
What kind of pump does this setup use? Judging by the size/quality of the other components, it's probably quite small and weak. I think the overall size of the system (blocks, hose diameter, radiator size, probably pump size) is too small to effectively cool that much stuff. When you have a lot of heat going into the water, you need a pretty big radiator to get that heat back out effectively. Try swapping in a bigger radiator, a faster pump, bigger tubing, better blocks, and like others are saying, ditch the pelts. In other words, this whole setup looks like a gimmick. It appears that whomever designed it didn't know much about what they were trying to do.