Well its said to be the better one. Now its been a while since I looked up numbers but the Talk back in 06 was as follows.
Greg Mentioned the Following Numbers back early in this Post of what he found listed:
It has been posted that it is 205/210 duration 542/526 116 lsa cam.
My impressions based on searching is that the AB is the first version with these specs:
338 lobe lift, duration 50 on the intake 205, exhaust 211
and 557 /528 lift, on a 117 LSA.
where as the AC version differs as 208/211 with same lift but on a 114 LSA.
To me if this info is 1/2 True then the AC Version would be Meaner Like Kenneth Explained?
I know that the box the Cam came in has AC as part of the Part # but is not as far as I know stamped into the Cam itself like on some Factory Cams (My LX did).
You can get new one at Hensons or PM Factory Mopar .com Vendor who are awesome to deal with anyways they can hook you up.