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Thoughts on cam "profiling":
In the "Engine Masters" competition the motors are judged on h.p. and torque from the 2500 rpm to max rpm range. In other words, "real world" conditions. Andy Dunn, "The Butcher" made an interesting comment concerning camshaft design. He found that more significant than the typical "Lift" and "Duration" numbers was the accelleration ramp of the cam lobe. How FAST it could open the valve. A measurment rarely if ever reported.
It's note worthy that AFR has taken a similiar approach to their awesome heads, among the best available today. They design for "over all" performance, not getting hung up on "peak flow" numbers. Twisted Wedge heads, for instance, flow more peak cfm than AFR. But dyno results show a very modest gain in h.p. at high rpm over the AFR heads. AFR builds h.p. quicker and more evenly through out the rpm range.
I went with the 282S cam on my 427, my shift point is "down" from 6500 to 6000 with this more "mild" cam than my old roller solid. But the motor "feels" as strong or stronger, particularly more bottem end torque. Drag strip numbers are, surprisingly, very close to what I was running before! Gessford calculated I "gave up" about a 150 horse with the lower compression and smaller cam (was 667 horse). All I know is: The car FEELS like it's faster than ever!!
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