The M22 in my '72 T/A has a loud whine... my '70 Chevelle SS454's M-22 sounds the same. They sound cool.. buy gets kinda annoying after a few hours of driving.
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 Current Pontiacs -
1973 Formula SD455 - #'s auto orig paint
1972 Trans Am - 4 speed orig paint
1966 2+2 convertible - 421 4bbl automatic
1967 Grand Prix - 4 speed orig paint
1967 GTO - 4 speed orig paint 35k orig miles
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