it al depends on how big your charger is.
that norman looks like a fairly decent size for a red, so i would say you could run up to something like a 72/74 degree cam (288/296 duration) and have a lumpy idle with all the grunt coming in the lower midrange to redline. and what grunt it will be!!!!
for example an XU1 grind would be a very mild cam on a blown 202.
kinda defeats the purpose of a supercharger (the whole "boost from idle" thing) but if you're chasing max power rather than good overall average power then it's all very possible.
and wasting pressure is just wasting pressure - it's not detrimental to a blower like it is to a turbo which overspeeds and overboosts.