[srmmmm]

I cannot speak to the performance/reliability of the CVF water pump. I do have the polished CVF serpentine conversion on my 1970 Bird and can say it works perfectly with the exception of the power steering pump. I went through three of the power steering pumps in 2600 miles. There is something wrong in the manufacturing process of the polished pumps that contributes to leaks between the pump and reservoir and significant noise during operation. All were replaced under warranty, but pump number 4 was a black finish pump that the House of Hotrods said has been a trouble free version. I only have about 100 miles on the new pump but it is definitely much quieter than the polished versions I had earlier.
I originally had an Edelbrock Victor water pump installed on the engine build. The seal gave way after 1600 miles and the engine was prone to very high running temps at freeway speeds as well. I had not examined the pump prior to installation, but saw it after it came off the engine and was very surprised to measure the vane heights at an average of just 5/16". Edelbrock furnishes a new backer plate with the pump, but I fail to see how it could push enough coolant through the engine under high load conditions. Extremely disappointing for a $300 water pump.
I went to the PRW pump and have not had any overheating situations since.