Isnt the stock 350 cam about .420 lift? The cam you have know is the same lift as a stock Ford 302 H.O. motor. (not that it matters). The bigger duration will allow the vavles to stay open longer, and the more lift the further the valves will open...So I guess the answer would be yes, it will make more power. Will you be able to tell it in the drivers seat, probably not. Although I could be wrong, someone correct me if I am.
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