Come on, do you really think Honda would stick something in that head if it didn't need to be there? Those extra lobes do the same thing that any other camshaft lobes do-make valves go up and down ...
There are so many goodies to pick from, but my first thought was the Honda B16. Some variants of that pokey little 1.6-liter dual-overhead-cam VTEC mill made an astounding 100 horsepower per liter ...
One of the happiest times of my life was driving my yellow bumble bee; the Integra you see here. Mind you it was my first real car, unless you consider the 1984 Civic DX I owned for six months before ...