I'll check that out thanks. The pulley set up I'm looking at has two groves on the water pump and crank pulley? I think one my be for air cond. I'm not sure, mine only has one groove on my mock up water pump pulley?
If you run twin electric fans (like one of Flex-A-Lite's setups) there's enough room between the fans to clear a long water pump.
I plan on going to twin electrics in the future, but for now I still run a mechanical fan.
If you're looking at accessory drives, I'd highly recommend looking at Jones Racing Products. I am glad I did...I was able to work with them to get exactly the setup I was after, and it works great.