[patrickt]

What fan model number are you currently using? Like you, I have the larger radiator but use a SPAL #30102120, which moves 1918 CFM of air, and it is not noisy at all. In fact, sometimes I can't tell whether it's on or off at stop lights just by listening. I also have the Edelbrock water pump. Plus, I have pusher fans, but they are on a separate circuit and only come on manually. They do help to keep the temperatures down if I turn them on, but they also make more noise.