Hi guys,oct 2010,I asked you to make me one of those aluminum water pumps for my 68-350,you did,and u wanted me to let you know how it worked,well the 2 weeks i drove it before it went to storage i didnt notice any difference from the factory one,so maybe in the spring/summer time I will see an improvement in engine cooling with this nice looking pump.So until then feel free to call me or write me with questions,thanks Chris in Auburn Mass