10W40 too light?

new mild cam. How does not being driven enough enter into equation, if at all? I was laid up 3 weeks, then the car was in the shop mostly waiting for parts 3 weeks. FWIW, I intend to get some regular driving in from here on out.
Summit Racing Part Number: SUM-6401
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-5,500
Intake Duration at 050 inch Lift: 224
Exhaust Duration at 050 inch Lift: 234
Duration at 050 inch Lift: 224 int./234 exh.
Advertised Intake Duration: 298
Advertised Exhaust Duration: 303
Advertised Duration: 298 int./303 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.466 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Valve Lift with Factory Rocker Arm Ratio: 0.466 int./0.488 exh.
Lobe Separation (degrees): 114

Not being driven for 3 weeks will likely mean the lifters have drained out, so, there might have been some noise on start up as they filled up. Yes, they're anti-pump lifters but they won't hold oil forever. But that should go away immediately after start up.

Do you know what was done for the engine/cam break in?