Short answer: I have done all the mods listed on this site in the sticky section and they have worked very well and I have been very happy w the results.
I have done most of the mods to this car, the swirl tank, flow cooler water pump, new aluminum radiator w a single 16" pulling fan, shaw thermostat and cut hood. I do not have an aluminum block but my temps are 184/186 in motion with no fan. I live in N. central Florida and I drive this car just about every day year round. I need my fan only in light to light traffic. I take the car 12 miles to to town and 12 miles back just about every day. I can't remember the last time I turned on my fan and I have never seen this car over 195 unless it is low on coolant. Like many cars, it did have temp creep when I was driving it for an hour each way, the mods fixed that although I have not done an hour run in this car in some time...