I assume that if you were to install such a critter, made from aluminum sheet metal, etc....installed in the front of the radiator, it would cut off some air flow, and bring your temps up..!?
I would start with a piece cutting off 2/3 of the air, and then if that is too much, cut it down and try that. You can anodize the air dam to match what you want, even use a piece of fine extruded sheet aluminum, to cover the whole radiator would reduce air flow...something to experiment with! Sounds like it's right up your alley!
Other options would be a MUCH smaller radiator! Or no fan at all, or a much smaller fan.
My Scout 2 has a 258 CI straight six, and I run the fan but no cooling shroud, and it runs cool anyway ! I don't really even need the fan!
No need to thank me, as ERA535 said, any guy with enough B***s to put a 6 in a cobra deserves the help!!
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