I talked with Evans tech this AM and the guy was very helpfull.. We talked for about twenty minutes on the subject. He also informed me the Edelbrock's water pumps flow quite a bit less than the stock pumps, ie: you must overdrive it to get the same flow as the stock pump. Ebock does this to have less of a parasitic loss. I wonder if there's an impeller mod out there for it?? Even though Evans fluid temps are higher the head/cylinder temps are actually lower. Check it out at
www.evanscooling.com/main1.htm
I'm going to do some research on a different pulley combo..
more to follow....