360 Serpentine conversion - March Performance vs CVF Racing

One consideration of the CFV system and the main reason I would use their basic drive setup is that it has an 18% overdrive to the fan/water pump pulley. The March kits are either direct drive or underdrive, and in my case with the stock type two core radiator, it makes a difference. A good clutch fan and shroud along with circulating water as quickly as possible as per Flow-Coolers instructions makes a whole lot of difference in the summer.