WHOA!! NOT all cams are created equal, it's just not a matter of grinding up a duration and lift!! There is much involved in making sure the valve train doesn't get unwanted harmonics, that the valves aren't pounded down onto the seats, that the valve and valve train is accelerated and deccelerated with regards to longevity, do a little research and you'll be suprised at the amount of mathematics that go into designing a camshaft these days, in the old days it may of been experience and suck it and see but not these days.