Time to change cam?

Having installed 3.91, 2400 stall. I was wondering if it ws time to change my cam. Currently have comp cams XE262, was thinking of changing to lunati 262/268 grind
Advertised Duration (Int/Exh): 262/268
Duration @ .050 (Int/Exh): 220/226
Gross Valve Lift (Int/Exh): .475/.494
LSA/ICL: 112/108
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 1400-5800
Restrictions on my car are, no headers and not keen to change -running thru 2.5" TTI system
Compression is approx. 9.1
Appreciate your thougts as I could do this change over the winter.