I have almost exactly the same configuration you have. 1969 340 block .040 over and 4" Molnar crank (418). Edlebrock aluminium heads, Fitech EFI, Champion 26" aluminium with a electric fan for a Chevy HHR ($50.00 brand new from Amazon but has to be slightly modified), 190 degree high flow thermostat and an oil/trans cooler combo with a electric fan on it as well. Both fans are being controlled by the Fitech as us my timing. My car runs about 190 degrees in traffic and goes as high as 200 when running down the road. Here's a few pics.
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