I have installed an electric puller fan on my V8 54 project and am looking for suggestions/recommendations on which temperature control unit should be used. The fan is a two speed unit and I want the low speed (2400cfm) to kick on at 180 degrees and the high speed (3200 cfm) to kick in when the "to be installed" AC compressors starts up.

Has anyone installed one of the temperature controlled fan sensors. What brand? How did you wire it up? Installed in manifold or head?