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7 Graph 1: Stock 350 Starting with a basic 350 with flat-top pistons, we first equipped it with a stock hydraulic flat-tappet cam (the engine was rated at 180 net hp when new), a set of stock iron 882 heads, and Q-Jet intake and carb. Not surprisingly, these stock components produced plenty of torque (385 lb-ft at 3,300 rpm) but very little peak horsepower (just 279 at 4,500 rpm). That the peak power came at just 4,500 rpm was a clear indication that the stock heads, cam, and intake were all designed with low-speed torque in mind. There are obviously more powerful factory cam profiles (the Duntov 30-30 for instance), but we chose these specs to represent what you might find in a fullsize car or truck at your local wrecking yard.