I've searched other threads but cannot find the exact answer to my question. I've also checked CSR's and Summit Racing's site to no avail. I am replacing the water pump on my '67 289 with a CSR electric water pump (model 905B). The CSR pump only has (2) 3/4" ports on the bottom hemisphere of the pump, with no provisions for the bypass or heater hoses. Do I have the wrong pump, or is there a "right" way to make what I have work? I'd like to retain heater functionality but, the heater in this cars doesn't work well to begin with and I don't drive the car in any conditions to make it an absolute necessity.