[601HP]

I had the same experiences with just the twin pusher fans, until I mounted a Spal fan on the rear of the radiator. I think it's a 14" diameter unit. It is thermostatically controlled. It has made a huge difference during slower speed driving temperature. The Spal will keep the temps at or below below 85 degrees celcius on a 90 degree F ambient temp day. I don't know how the Spal compares with the CCI unit you now have.

I bought the four small brackets to mount this fan from Kirkham.

I still have the twin pushers in front because they look correct.

David