Not true guys I already commented on this
Who made the first DC cams? RAcer Brown?
Even Chet Herbert and Crower had many .904 lobes back in the day
UD Harold did some for Lunati then Ultradine but not for the earlier Comp line The Lunati's were quieter than the comp and made more power
General Kenetics had mushroom tappet cams which we tried to race but got caught, well the caught us with our Engle rollers too
The Isky cam I mentioned was better than the factory 413 Super stock X ram cam especially when switched to headers
The DC cams were not max effort cams but meant to be installable by the average builder and run long and reliable
We have much better springs, lighter springs, retainers, valves, you can do much better than the vintage DC grinds oh and lighter pistons too