2 - 1''Row Alum rads Any good

A Body 440 WHY NOT said
Thanks All ! thats a lot of info
What diameter pulleys are best to run ? Crank and WP ? I have some pulleys , but they may be small bloc. I don't know if the diameter is different or no ?

I run my water pump at 6% over crank speed and if I could have found pulleys that were 10% over cranks speed I'd have used those.