Electric fan controller
I also tried that same fan set up with a 22" downflow radiator and it worked fine as long as the fan was running but I think it is a design problem with the shroud itself because it doesn't let enough air flow through the radiator when you drive down the road. If you look at Pauly's new set up with the dual fans the shroud has little rubber flaps that will open up when you drive down the road to let air flow through the radiator. I ended up taking mine off and put the mechanical fan fan back on and it cooled fine. I'm getting ready to give the electric fan a try again without the aluminum shroud so that the radiator can breath when you drive down the road. Just my two cents.
Pat Faley
67 NB Barracuda 408 stroker 4 speed
69 Vert project
East Peoria IL