camshaft for mild 340

garret et al
check the .200 duration of the Summit, 268 and 270 comp, 214/224 etc and compare with the DC you end up with a lot of duration for the area under the curve= power
The 284 DC checking at .008 is a lot bigger than the 284 Summit checked at .004 compare apples and oranges
COmp 268 (checking at .006) is way too expensive for what you get as is the DC
the mild .904 cam grinders I mentioned are actually less radical than the 268 comp which at its time was pushing the envelope for a chevy grind
yes rumble obsolete
designed back when jerk was not considered by the big grinders except by Crane the newer designed with a modern computer instead of a hand calculator or first generation computer that Harold Berkshire used are a lot smoother and easier on the valvetrain