 Complete the following phrase:  Ferrari started the season with a 65-degree Dino engine, then replaced by a new engine with the V-angle increased to 120-degrees and designed by Carlo Chiti. A V-6 engine with 120-degree bank is smoother at producing power because every 120-degree rotation of engine crankshaft produces a power pulse. This change increased the power by . Bore and stroke were with a displacement of and a claimed at 9500 rpm. For 1962, a 24-valve version was planned with at 10,000 rpm, but never appeared. At the 