How much stock horsepower?

Apparently the 440 first came out in 1966 and its glory days (stock-wise) were in 1970 with 390HP@4700rpm, afterwards horsepower kept on going down till it reached 195@3600 (again stock-wise). Keep in mind that this is probably the net power!?! and not the flywheel power which is more understandable, by me anyway...

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