When they say it is ground advanced, that is reflected in the cam card numbers and should be installed straight up which should be the case when installed on zero assuming the gears are marked properly during manufacture.
If it's stock block with stock compression, 150 is probably pretty good because the cranking compression drops as we add duration in a general sense. Advancing cam events six degrees should give a bit more cranking compression but it is still affected by the longer duration. No free lunch.
