Nitrous Oxide - Copper head gaskets or not?

I'll try and make this to the point. The car is going in for the new shortblock and nitrous setup within the next few weeks. I plan on spending the majority of the time with the 150 shot, but do plan on seeing 200 shot. Should I go with copper head gaskets, or is there something better, OR will the stock head gaskets be good enough? I heard copper was not good for street use.

TIA

Even though this is nitrous related...I feel you'll get better responses in the engine section. I'll move it there <img src="gr_stretch.gif" border="0">