Dion, I think that cam is for a stock piston, hence the short duration. I think they try to make up for that with lift. I find there aren't many cams advertised for the G3 that are for aftermarket pistons only. I'm sure that's to prevent the uneducated 2015 challenger owner from late night online shopping from buying a cam that will trash their valvetrain. I'm sure you know any cam company can grind whatever you want. The cam I run in my 408 is actually a grind that's advertised for a small block chevy.