I'm replacing the radiator fan with a Spal unit to make a little room for a turbo upgrade. I'm trying to find out if anybody knows either the amperage that the stock fan pulls or the cfm that it flows? Spal has several 12" units that would fit in my case. They range from 7A draw to over 15A. They flow between 850cfm and 1600cfm. I'm trying to figure out what stock fan was so I have a starting point. I have a feeling that this isn't the world's highest output alternator so I don't want to just jump to the extreme end of the flow/amperage range, but I also don't want to have cooling problems by going too little.

Thanks!