Crower cam's
I had the crower 31406 in my car for a long time. The grind has changed from:
Old #31406 (lobe center 112, Adv dur 290 294, lift .550 .555, RPM range 3200 to 7200) I was really happy with this one.
to
New #31406 (lobe center 112, Adv dur 270 280, lift .550 .548, RPM range 2500 to 6500)
Click on "learn more" and it will give Advertised Duration: Intake / Exhaust.