Just the facts....
Not trying to argue, just stating the facts of my '68 Firebird 350 with a/c and all baffles in place. In traffic the engine runs about 180 with a/c on. But on the interstate with or w/o a/c on it will, and always has since 1978, run 220 -230 and has never had any issue or boil over. All my vintage ('68-'73) V-8 Pontiacs have done this except that the interstate temps were about 10 deg cooler than the FB.
I have tried the cast pump, clearanced, and even installed an aluminum rad last year and my results are the same. My engine just likes "high" temps period!!! And never "cooked" the automatic trans yet either.
I don't worry.
DanC
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1968 Firebird Convertable - my original HS car!
1978 Firebird Esprit "survior"
1930 Ford Model A Coupe .. (original)
1994 Buick .."TowMaster" ...woody wagon
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