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GM and the others were shooting for a near-constant 115F in the early seventies with those crude emission control devices. A constant temp meant other parameters were more easily tuned. And WOT was unaffected, overall, as a cold air intake could feed the carburetor secondaries (which were not part of emissions tuning).
My last carb'd car (big block Chrysler) used this method, but isolation for the carb mount was used to try to avoid heat soak of the unit itself.
Hot oil and hot coolant seems do-able . . hot intake air seems a little more difficult to get just right.
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