Comp XE270S experiences?

In process of building a .040 over 360 plan is 9.25-9.5 compression Speedmaster aluminum heads. I'm a solid flat-tappet cam user. Looking at the
Basic Operating RPM Range:
1,800-5,800
Intake Duration at 050 inch Lift:
224
Exhaust Duration at 050 inch Lift:
224
Duration at 050 inch Lift:
224 int./224 exh.
Advertised Intake Duration:
270
Advertised Exhaust Duration:
270
Advertised Duration:
270 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.468 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.468 in.
Valve Lift with Factory Rocker Arm Ratio:
0.468 int./0.468 exh.
Lobe Separation (degrees):
110
No track use planned so this is the largest cam size I'm considering for driveability
I've used the Isky E4's in a few 318 builds that turned out very well but feel I need something a bit larger for the 360 platform

Thanks in advance and Happy 4th all