I am going to use the ultima or maxima fans to pull the air through, The ic is going to be insulated from the rad with some rubber ( just where it is the closes to the rad). also it's not set in stone on the rad might use a alum 240. No matter what I use i'm going to get some heat bleed from the rad to the ic. Ther is a gap of about an inch and a half on the top and two inches on the bottomso that helps.