My '78 has moved on to a new owner....I never checked to see if the vents would deploy...I run mostly on flat ground and never overheated. I think a p/o put a larger radiator in it...It is huge!
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1993 Newell 45'#316, 1976 Trans Am 455, 1967 GTO, 1953 Chevrolet 3105 (panel truck),1952 Chevrolet 3600,1969 Airstream Overlander. Always fixing something!
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