Dear Collective, It is with great joy that I can finally say I am officially a rotary head as of this weekend. I've purchased a 20B along with PSRU, turbo, injectors, pumps and various other peripherals. I do have a question which came up during various back and forth communication/negotiations. It regards the water pump, there was talk of modifying the stock pump but the reasons, method of modification and long term results were a little hard for me to understand. Can someone from the group shed some light from your experience in this area. Regards, Luis Luciano Velocity XL-5 "Dulcinea"