I plan on installing a puller fan on my 1965 I-6.The core size is 17"Lx15"W. I would like to put an adjustable thermostat in the water jacket. My questions are: Who is a good mfr? What size fan should work? What CFM rating should I get? Is 1800-2000 cfm sufficient? Should I mount the thermo probe in the radiator petcock plug or in the threaded port on the thermostat housing? I have the stock alternator on this car so do I need to worry about amp draw since I plan to wire this to run with the key on or off. For anyone who has done this setup, I would like to here what works best for you. I realize that this topic has been covered numerous times and hope that this post doesn't annoy. Thanks in advance.