Would advancing this cam 2* or so be worth doing.

Degree it like the card recommends, degreeings 2*to 4* is not going
to make whopping amounts of power gain unless its really off.
It will move the torque around in the rpm range.
Changing the valve springs will do more to wake up your engine if its an older build.
Check your balancer to see if it reads true TDC.
The combination of springs and getting your timing all in line will
be the most beneficial, all other changes can be made externally.