I'm in the process of ordering and installing a KB 2.1L this next month and I've noticed they advise you to run a 70/30 water/coolant mixture in the Intercooler AND the radiator. It's fine for the Intercooler, but I thought that a 60/40 ratio of water/coolant was the least amount of coolant you should use in the radiator. What kind of mixture does everyone else run in their blown applications? My buddy just runs 50/50 still, and he hasn't had any issues. Just trying to figure out what ratio I should use in the radiator. Thanks for the input everyone! Can't wait to get the blower on!