I was looking here - http://victorylibrary.com/mopar/mpcam-tech-c.htm

And it says that the 509 should be installed at 108 per Chrysler.

Quote:

Big thing with the 509 is to make sure it is degreed at 107 they are dogs at 103 fun wow!!!

I two like RPM performer 750 holley, headers and 3000 if you don't degree the cam 4000??