jos51700
Green Bearing thread connoisseur
The @.050 stuff came in later. In the day, they measured at .005, .006, .010....meh, whatev's they felt like measuring at. If you wanted to be sneaky, you ran a higher "@" measurement to make it look like you had less duration. If you wanted to sell cams, you advertised a lower "@", higher duration number.
The .050" came about by some, but not all, cam manufacturers in an attempt to standardize things.
FWIW, anyone with a D-Dart need not pull a cam to get you this info. Popping a valve cover, and breaking out the degree wheel and dial indicator is all that is needed.
The .050" came about by some, but not all, cam manufacturers in an attempt to standardize things.
FWIW, anyone with a D-Dart need not pull a cam to get you this info. Popping a valve cover, and breaking out the degree wheel and dial indicator is all that is needed.
