fan clutch

We now have the original style correct 7 blade curved tip fan with a 17.5 diameter for short water pump applications. :hurray: This is a Ground Up exclusive part. Here is a direct link to the product page...

I own a 10 to 1 540 that will be installed in a 70' Chevelle. (street/strip). Typically, what does it take to properly cool such an engine, in a factory a/c car? I do have a OEM 4 row radiator, in good condition. Using an aftermarket water pump, the 4 row, and clutch style fan, .... is that...