So, after some searching, I can run a 2-1/8" deep w/p pulley and it'd line up with the front 7-1/4" power steering groove (not being used) on my existing crank pulley. After searching ebay, I see they've got 2-1/8" deep single water pump pulleys of the following OD's- 5-5/8", 6", 6-1/8", and 6-1/4". Which one would be best to run with a 7-1/4" crank pulley? Seems the 6" would result in a 20% over-driven water pump. Is that too much?
